2016-02-29	532.5	8.89		59.9	"FIRST MEASURED/RECORDED FILLUP At this fillup, I added 4 oz. Marvel Mystery Oil to the fuel tank. First time doing that on this car. MMO label instructions: 4 oz per 10 gallons fuel. I did my first Insight oil change - also fixed up the underbody front aero panels - shortly before this fillup, at 163,516 miles on the odometer. Mobil 1 full synthetic 0-20, with 6 oz Marvel Mystery Oil included. And a brand new Honda oil filter. Prev. owner had changes done at Honda shop. They used Honda filter BUT they overfilled the oil (or someone did), it was a good 3/4"" over the top dipstick mark. TABLE OF MARVEL MYSTERY OIL GALLON EQUIVALENTS Add these amounts to pump readout when adding MMO to the gas at fillup. 1 oz. = 0.008 gal. 2 oz. = 0.016 gal. 3 oz. = 0.023 gal. 4 oz. = 0.031 gal."
2016-03-03	571.6	9.509	$2.79	60.11	"Filled high test at Glastonbury Shell, Rt 2. Fil amount includes 4 oz MMO. Fill included trip to Port Washington, NY. FCD: 62.0 mpg, 581.6 mi = 9.38 gal est."
2016-03-09	581.6	9.269	$1.959	62.75	"FCD said 62 mpg = estimated 9.38 gal. Filled up regular at Henny Penny Shell, Wtfd. Rte. 85. Did not use Marvel Mystery Oil in the fuel this time. Avg spd something like 39 mph. Definitely under 40. Civic and Accord were usually 42-43 mph. average."
2016-03-15	534.5	8.426	$2.159	63.43	"The prior fill included no MMO. Lean burn behavior got worse and worse as the tank wore on. Instead of holding lean burn at 90-92 % load, it got shaky at 80-82%. I finally decided to fill a bit early, and add MMO again. This time, just 87 octane instead of the previous high test. I've already driven about 40 mi. on the new fill with MMO. Lean burn is improving. Not yet back to as smooth as things were before I restored the MMO to the fuel. I dunno, and don't care, whether the MMO is cleaning the EGR valve or the passages, or the injectors, or the LAF sensor (I think that's what it is) or the oxygen sensor. Whatever it's doing, it restores lean burn. I plan on cleaning the passages but this restores lean burn much faster and easier."
2016-03-22	637.9	9.844	$2.099	64.8	"Low fuel light came on at ?1 bar? I drove about 2-3 miles to nearest Shell station. FCD said 65.5 mpg. ScanGauge: avg 41 mph, 57.6 mpg (it doesn't measure lean burn) Fuel qty here includes the 4 oz MMO I added in this fill."
2016-03-31	666.8	10.945	$2.199	60.92	"I didn't really get 666.8 mi on the tank. I put in 4.505 gallons yesterday and topped it up fully today. Kept the mileage counter going and logged it all as one fill. Avg spd. 39 mph. FCD: 666.8 mi, 65.0 mpg = est. 10.258 gal. FCD fuel estimate has been consistently low. I sometimes smell fuel when driving. Hmmm....."
2016-04-02	117.7	2.243	$2.359	52.47	"Interesting. Even when this car was spitting fuel into the air, it still got 52 mpg! Fill includes about .5 ounce of MMO, but I didn't include that amount in the fuel consumption number. It was already bad enough. Discovered and repaired fuel leak at the usual location for Gen 1 Insights: within the grip area of the clamp holding lines to firewall, passenger side. My friend Rob Bareiss guided, assisted and provided invaluable input based on his many years of experience. After completing the repair I thought it appropriate to top it up, so the subsequent tank would reflect the new status and not the leak. That turned out to be a good move. The car took 0.51 GALLONS more than the FCD numbers indicated. FCD fuel estimate: 1.733 gal (67.9 mpg showing on display) ScanGauge avg speed: 34 mph"
2016-04-14	1204.5	18.234		66.06	"FCD reported 63.4 mpg. No, I didn't have a 1200 mile tank. And tank holds only 10.6 gallons (per Honda). I added fuel twice and kept the trip odometer going. This was in prep for the Green Grand Prix. Running the 10% ethanol fuel out of the system, to fill with the max possible amount of pure gas at my first non-ethanol fuel stop. That fill was 8.961 gallons at the last fuel stop in this fill. Done at Stewart's Shop #250 in Duanesburg, NY. Total fill amount here includes 8 oz. Marvel Mystery Oil."
2016-04-15	270.6	4.7		57.57	"Filled at Lakes Gas Sat. at 12:18 pm, after the road rally. I zeroed Trip A for the road rally. My recollection is, it showed about 55 mpg at the end of the rally. Sorry I didn't note the FCD's data for Trip B at this fillup. Includes (estimate) of 2 oz MMO."
2016-04-16	294.5	4.412		66.75	"Includes the (likely overfilling) fill at TOPS just before the WGI track event, plus my final NY non-ethanol fill in Monticello on Apr. 16 at 2:24 p.m. Fill record also includes 2 oz. MMO. FCD showed 78.9 mpg over 90.3 miles in the GGP event. This is track miles only. I strongly suspect the volunteer overfilled the tank at TOPS. I saw nothing spilling over, but he may have flooded the evap system, causing a subsequent loss of fuel and/or fuel vapors. Or maybe his ultra-slow fill just filled it higher than I ever do. It was filled at Lakes 4.5 miles prior to the fill at TOPS. Obviously I didn't use 1.401 gallons to drive those 4.5 miles. Lakes guy stopped at the first click, TOPS guy filled very slowly. I guess he was trying to do me a favor."
2016-04-20	613.2	9.347	$2.359	65.6	"FCD estimate 9.03 gal. Based on: 613.2 milies, FCD 67.9 mpg. avg speed 43 mph This was the first 10% ethanol fillup (regular grade) following the Green Grand Prix. It includes the approx. 350 mile trip home from NY State. Data includes the MMO added at fill time."
2016-04-25	414.2	6.194		66.87	"avg speed 39 mph Filled with 93 octane Sunoco; research indicates overseas Insight manuals specified 91 octane. Only US was specd for 87. Sheeesh. Includes 2.5 oz. Marvel Mystery Oil in the fuel."
2016-05-03	742.4	11.691		63.5	"FCD: 742.4 mi, 65.3 mpg Avg spd: 39 mph Filled with 93 octane Sunoco + MMO. After trip up to Boston in rain. Lousy traffic."
2016-05-09	581.3	8.544	$2.999	68.04	"93 octane, like last time. Shell gas. Avg. speed 40 mph FCD Estimated Gallons: 8.715 Weather has finally warmed up (again; we had a temporary warmup a couple weeks ago). This tank was begun in/near Bellingham, MA after my trip up to Boston."
2016-05-17	621.1	9.265	$2.659	67.04	"Sunoco high test Avg speed 39 mph 8.96 gal estimated by FCD (est. 69.3 mpg) 9.265 gal. incl. 3.6 oz MMO"
2016-05-23	636.8	9.568	$3.059	66.56	"FCD estimate 68.3 mpg = 9.32 gal. est. Avg speed 37 mph ODO reading 172,029 mi. Shell high test, Waterford Rte. 85 Fuel qty incl. 4.3 oz MMO. I only planned on about 3.7 oz but I went over a bit."
2016-05-29	683	10.132	$2.559	67.41	"High test at Hillsborough, NJ Exxon. Includes 3.6 oz MMO. Needed a/c for trip to NJ; it was hot out! Got about 65 mpg on that trip. Lost ScanGauge data due to 12V battery went flat when I left the lights on during the week, at work. Got the miles from the main odometer because... I managed to zero out the B trip clock in mid-tank."
2016-06-03	584.5	8.819	$3.089	66.28	"Fill amt includes 3.5 oz Marvel Mystery Oil. FCD estimate 8.52 gal. Odo reading 173,296 Avg speed 42 mph, includes trip back from NJ. Some a/c use in this tank. Shell on Rt 85, Waterford CT"
2016-06-09	644.5	9.457	$2.599	68.15	"Rte 85 Shell, Waterford CT Avg spd 39 mph Fill data include 3.5 oz MMO FCD estimate 68.3 mpg = est 9.436 gal."
2016-06-14	572.4	8.824	$2.599	64.87	"Includes NY trip with a/c. Plus a commute run with a/c. Warmer weather is nice for the engine but if it's hot enough to need a/c, there's about a 10 mpg hit from that. FCD estimate 66.2 mpg. Avg spd 40 mph. 174,513 ODO at fullup 87 octane again. I like the results better than hi test."
2016-06-21	678.8	9.824	$2.449	69.1	"some a/c used in this tank. 40 mph avg speed Est. 68.8 mpg on FCD Est. 9.866 gallons from FCD - just about dead on vs actual! Odo at 175,192 Filled at Shell, Glastonbury - Chestnut Mart - Main St. by DD."
2016-06-27	549.6	8.379	$2.599	65.59	"Filled 9 am at Shell, Rte 85, Waterford, CT. avg speed 40 mph 87 octane odo reading 175,742 FCD Estimate: 8.12 gallons Fill includes 1.6 oz MMO. This is now reduced to 1/2 strength, 2 oz /10 gal fuel, on account of I cleaned the EGR passages two days before the fill. The new ""B"" Trip was inadvertently ZEROED after 40 miles. Add to B trip value at next fillup. Tank included a FAST trip up to Bloomfield/West Hartford for P&W United Chorus, with A/C. Only 61 mpg."
2016-07-05	608.6	8.66	$2.559	70.28	"No MMO used in this fill. Added 40 mi. to Trip B number due to inadvertently zeroed earlier (see note in previous fill). Avg speed 38 mph"
2016-07-11	592.4	8.659		68.41	"No MMO this fillup. 87 Octane Rte 85 Shell, Waterford, CT. FCD said 71.2 mpg = 8.32 gal. Actual was .34 gal more. Odo: 176,943"
2016-07-18	634.6	8.791	$2.779	72.19	"89 octane this time. I think it was $.40/gallon more expensive! FCD: 71.9 mpg, calculates out to 8.826 gallons. 40 mph avg speed Mostly pretty warm dry weather. I think no ac at all in this tank. IMA battery issues showed up at the end of the tank but it ended up being an excellent tank anyway. Note - IMA light cleared after pulling the appropriate under dash fuse. Frequent recalls seem to be happening again but at least the IMA light seems to be staying off, now about 150 miles into the next tank."
2016-07-25	653.1	9.038		72.26	"Rte 85 Shell, Waterford CT FCD estimate 74.0 mpg = 8.826 gal Avg speed 41 mph. Prior to this tank, did a slow charge of hybrid battery, till V started dropping very slowly. Also did a BCM reset which pretty much ended the constant pos and neg recals it had been getting. Weather is hot and I rarely use ac."
2016-07-30	505.2	7.032	$2.659	71.84	"Seaport Shell on Rt 27, Mystic FCD's est mpg: 73.5 = est 6.873 est. gal. Filled before trip to NY. Aired up the tires at this fill - were at about 40, I put them to about 48 psi."
2016-08-01	315.6	4.896	$2.399	64.46	"Filled following trip to NY. NY trip seriously hurt my mpg. Avg speed for return trip (highway) was 53 mph, much faster than my usual ~40 mph tank average. Actual highway speeds were mostly between 60-70. It's just that I usually drive a lot slower than that on the highway! I drove about 30 miles on smaller roads in NY with a/c, many hills, stop signs, lights, and traffic. Fuel economy on those local trips averaged about 45 mpg, far below anything I see in my usual travels near home. So I decided to let this NY trip show up as its own low-mpg tank. Trip up to work the next day (most of which is in the next tank), went fine. About 75-76 mpg on the FCD. So it's not the car, it's the circumstances."
2016-08-08	655.9	9.2	$2.169	71.29	"Shell station, Main St, Glastonbury. Nice level pavement. Avg speed 40 mph Est. gallons: 8.98, aka 73.0 mpg Been having some battery issues, learning how to cope using Calpod. Been able to avoid a/c use, mostly."
2016-08-17	598.8	8.543	$2.399	70.09	"Filled at Rte 83 Shell in Waterford CT. Estimated mpg: 70.336 = 8.51 gal. Avg speed: 41 mph. Aug 7 (approx.) I installed my dash top LED display of battery cooling fan voltage. Around that time, I also shifted to greater use of EOC. Less use of battery sometimes requires more fuel ""up front"", but there can be a net gain in mpg because the IMA system reportedly is only 70% efficient. In my case with an ailing IMA battery, it's probably even less efficient."
2016-08-20	609.8	8.242	$2.299	73.99	"Estimated mpg on FCD, 75.4 mpg = Estimated gallons: 8.088 43 mph avg Not-too-brutally hot weather has let me avoid ac use. Keeping the IMA SOC up by use of Calpod also helps a lot. And I've been doing more EOC, since using less assist requires less regen. Just avoid assist as much as possible. [on 8-24-16, checked receipt and found the miles was 609.8, not 608.8 as recorded here. Edited record to correct it.]"
2016-08-25	633.3	9.025	$2.399	70.17	"Filled at Shell, Waterford, Rte 85. FCD estimated mpg: 70.0 FCD est. gallons: 9.047 Avg speed: 40 This tank was started at Exit 62 rest stop on the way in to NY. So, this tank includes round trip to PW from home. NY trip didn't hurt mpg as badly as the last one, because I didn't do local errands in Insight, AND I only used ac for a short while on this trip."
2016-09-06	680.9	10.574	$2.349	64.39	"Avg speed 39 mph. Tank includes a NY road trip. FCD mpg estimate 65.5 mpg"
2016-09-08	361.5	5.497	$2.639	65.76	"89 octane at Shell on Rte 85, Waterford. Fill qty includes 4 oz Marvel Mystery Oil. avg speed 40 mph FCD Estimate 68.8 mpg = 5.254 gal estimate Filled on Thursday evening, prior to trip to NY which began after work Friday."
2016-09-13	565.7	8.607		65.73	"Fill includes 3.5 oz MMO 40 mph avg speed. FCD estimate 65.5 mpg = 8.637 gal est. Actual: 65.73 mpg Filled at Shell in Mystic, Rte 27, by McDonalds. Fill includes round trip to NY NY trip: 60 mpg going there, 70.7 mpg coming back. AC and faster going in, no ac and slower coming back."
2016-09-16	329.8	5.315	$2.339	62.05	"Filled at exit 62 rest stop on the way to NY. Est MPG 66.0=4.997 gal est FCD Avg speed 39 mph #s include 2 oz MMO"
2016-09-23	717.1	10.715	$2.329	66.92	"Did a partial fill, 5.003 gal. Then filled fully a day later at lower priced Shell station in RI. Avg speed 40 mph Est mpg 67.6 = est gal 10.608 (pretty close!)"
2016-09-27	595.6	9.191	$2.499	64.8	"Groton Shell, corner Rte 117 & Rte 1. Avg Spd 39 mph Est mpg 65.0 = 9.163 gal est. Fill includes 3.67 oz MMO (calculated target qty) Tank included round trip to NY. IMA battery trouble light came on, as I entered the NYC area. Did a grid charge in PW, NY. It ran much better on the trip home. had to do another grid charge Monday evening, Sep. 26. Warranty replacement battery is due in Friday Sep. 30."
2016-10-02	574.7	8.601	$2.249	66.82	"Oriental-owned Shell at I-95 exit 40 northbound. 46 mph vag speed - fast! FCD Estimate 67.6 mpg. = 8.501 gal estimated Fill amt. includes 3.4 oz MMO, the calculated amount. I WILL EDIT THE FUEL QTY TO BE THE FCD ESTIMATE PLUS 0.1 GALLON. I'M CONVINCED THE STATION OVER-REPORTED THE FUEL QTY. IVE SEEN SOME STATIONS DO THIS. IT'S NOT DUE TO IMA ISSUES SUCKING DOWN FUEL - ANY ADDITIONAL FUEL USED WOULD HAVE BEEN METERED BY THE CAR'S COMPUTERS. PUMP FUEL QTY: 9.204 (including my added MMO) MY RECORDED FUEL QTY: 8.601 gal. I blame the low mpg primarily on assumed fill pump inaccuracy. I've seen this before at some stations, but not yet at a Shell. Next fill could turn out to be UNDER the estimate by a matching amount. Or, the pump was just plain inaccurate. I've seen THAT before, and always off in that direction. There also are these three things: 1) High average speed. Usually the tank avg is 39-40 mph. Not sure how I ended up at 46. I think I must have changed my driving pattern. 2) some rain 3) IMA battery on its way out. I was getting an IMA light every 1-2 days at the end. I might even have had 2 in one day. Approx 60 mi. after this fill, I changed out the IMA battery for a warranty replacement from Bumblebee."
2016-10-08	571.6	8.204		69.67	"Fill includes 3.25 oz MMO Rte 85 Shell, Waterford CT Avg speed 43 mph FCD's est. mpg: 70.2 = 8.14 gal estimate All but about 65 miles were driven with NEW REPLACEMENT IMA BATTERY by Bumblebee. Not sure if its brand new or a refurb. MPG definitely is up."
2016-10-13	546.6	8.397	$2.459	65.09	"Estimated gallons: 8.084 Avg speed 42 mph Rte 85 Shell, Waterford, CT Fill data includes 4 oz MMO. I poured in more than the 3.2 oz that I planned on. :-( Weather is colder now. Some mornings in the upper 30's. Some daytime highs still in the 70's. I could save some fuel by not allowing heat till its warmed up. Not sure if I want to do that.... and it's not even winter yet."
2016-10-14	512.9	8.084	$2.499	63.45	"Shell station at Rtes 1/117 in Groton Estimated mpg: 68.3 Est. gallons: 7.51 gal Sheeesh. Final amount was well over the FCD estimate. It's been getting colder here."
2016-10-19	600.7	8.994	$2.459	66.79	"Shell station, Rte 85, Waterford CT avg speed 43 mph FCD MPG: 69.3 = 8.668 gal estimate Actual, 8.994 = delta of 0.326 gal Some great runs, 72-74 mpg. Some other runs, only in the high sixties. I blame the weather - somedays are like spring or late summer, other days are pretty cold or even rainy."
2016-10-24	551.9	8.711	$2.459	63.36	"Shell Rte 85, Waterford, CT FCD estimate 65.5 mpg, or 8.426 gal. Fill includes a calculated 3.37 oz. MMO. 40 mph avg speed."
2016-10-29	512.5	8.243		62.17	"Mobil at Branford rest stop on Southbound I-95 43 mph avg speed. FCD estimate 64.3 mpg = est. 7.97 gallons. includes calculated 3.17 oz MMO"
2016-11-09	529.9	8.645	$2.459	61.3	"Rte 85 Shell, Waterford Avg spd 40 mph Est. mpg 64.8 Est. gal. 8.177"
2016-11-15	573.7	8.931	$2.439	64.24	"Shell on Silas Deane Hwy, near I-91. Avg speed 42 mph Est. gal. 8.666 Fill amt incl. 3.5 oz MMO"
2016-11-18	386.5	5.947		64.99	"43 mph average Rte 85 Shell"
2016-11-23	559.4	8.807	$2.359	63.52	"Est. gal. 8.54 Fill amt incl. 3.4 oz MMO Avg spd 43 mph Filling station not ID'd on receipt. Probably Rte 85 Shell in Waterford."
2016-12-01	577.7	9.515	$2.459	60.71	"Avg spd 43 mph 3.6 oz MMO (Calc'd) FCD estimate 63.9 mpg"
2016-12-02	129.6	2.372		54.64	"Short tank. I don't recall what circumstances yielded such low mpg - likely either very nasty weather and/or a lot of short trips. Fill amt. includes 0.92 oz MMO Filled early because I had mounted the snow tires. So this fill represents the last use of summer tires this season. For future fillups, driving with snow tires: FACTOR: 0.97886 Multiply displayed distance by the FACTOR, to get the actual distance. Snow tires are 155/65-14. Original size is 165/65-14."
2016-12-10	571.3	8.888		64.28	"Avg spd 42 mph Est. 65.8 mpg ODO miles 583.6 * Factor 0.97886 ="
2016-12-14	567	8.85	$2.319	64.07	"Westerly Shell. Avg spd. 41 mph Est gallons: 8.565, based on est mpg of 66.2 Added only TWO OUNCES MMO this time. Calc'd amount was about 3.6 oz. I want to see if it will run well on less MMO. Tank includes a trip to NY. I don't recall any nasty weather in this tank."
2016-12-16	342.6	5.798		59.09	"Waterford Shell, Rte 85. Filled early due to NY trip early the next morning. 45 mph average Fill includes 1.7 oz MMO 63.9 est mpg on FCD"
2016-12-19	491.98	8.21		59.92	"Fill includes 2.5 oz MMO. 40 mph average. Filled at Groton Hess, near Dunkin Donuts 60.1 estimated mpg on FCD First 145 miles was in SNOW: to New London to pick up Mike, then to Long Island, NY. Car pulled only 48.4 mpg driving in mostly unplowed or long-ago-plowed snow. Rain began as we passed through the Bronx, so soon the roads were only wet, not snowy. Arrived at destination with a big 50 mpg showing on the FCD. Traction with the new Nokian snow tires was OK. I had to be cautious. When I got home, there were a few inches of snow in the driveway and I needed a running start to get up it. I pulled 70 mpg (FCD) coming home. Driving around in PW got me the usual ~45 mpg. Then, a usual mix of commutes after that. But one day, it was only about 20ºF, so that hurt things. And a day of no work (dental issues) with some local trips also brought the numbers down."
2016-12-24	509	8.669		58.71	"Madison rest stop, southbound on I-95 FCD est. 63.4 mpg avg spd 43 mph includes 3.4 oz MMO"
2016-12-29	548.46	9.075		60.44	"Westerly Shell 47 mph avg. FCD estimate 65.5 mpg includes 3.4 oz MMO Continuing to correct miles for the slightly smaller snow tire size."
2017-01-08	566.37	9.49		59.68	"Pre-fill in RI where gas is cheaper. FCD est. 63.2 mpg Est. 3.66 oz MMO avg spd 42 mph Rough weather, and drove with occupant who needed conventional driving..."
2017-01-13	549.14	8.751		62.75	"Rte 85 Shell, Waterford FCD est. 64.8 mpg avg spd 42 mph includes 3.5 oz MMO Weather-wise, the last month or so has been pretty brutal. Weather seems to be warming up a bit - one of the few benefits of climate change. In 20 degree weather, a trip to work or back nets about 60-61 mpg. In 45ish degree weather, I can pull high 60's, and even saw 71 once in a recent week. I had a nice tail wind that day."
2017-01-17	568.8	8.945		63.59	"Snow tires: Distance factor: 0.97886 (recorded distance is corrected for factor) Est. MPG: 65.5 = 8.684 gal estimate Avg Speed: 47 mph Fill qty includes 3.5 oz MMO Thankfully the weather has been a bit more gentle. Less precipitation, and slightly warmer temps."
2017-01-23	522.9	8.094		64.6	"Shell, Rte 85, Waterford Est. 67.9 mpg Doing much better now. Some commutes over 70 mpg on the display. Avg Spd. 43 mph"
2017-01-27	500.295	8.165	$2.599	61.27	"Salem Shell on Rte 85 Est 64.6 mpg Avg speed 44 mph Fill includes calculated 3.16 oz MMO"
2017-02-06	714.27	11.603	$2.599	61.56	"The tank doesn't hold 11.6 gallons. And no, I didn't drive 714 miles without fueling. I did a partial fill four days prior to the recorded fill. The recorded fill includes the combined miles AND the combined fuel qty. Pre-fill at Valero in Colchester, CT. Fill at Rte 85 Shell in Waterford, CT. Estimated mpg 65.5 (Insight's FCD) Avg Speed 45 mph (I've been driving faster lately) Fill qty includes 3 oz MMO added in Waterford, none added in Colchester. Distance (miles) is adjusted for snow tires."
2017-02-13	499.12	8.532	$2.559	58.5	"Rte 8 Shell in Waterford CT. Avb speed 42 mph Fill includes 3 oz MMO Distance corrected for snow tires in use. MPG has suffered. Granted, one trip was over snowy roads. That takes a toll - one earlier trip driving on 4-5"" of crumbled snow netted 48 mpg until we got to cleared pavement. Plus some very cold mornings and some nasty headwinds. I will be watching to see if mpg improves properly under better conditions. If not, I'll need to investigate for a cause."
2017-02-17	584.38	9.272	$2.469	63.03	"Shell Gas in Old Saybrook, Boston Post Rd. on west side of town. Fill includes 3.6 oz MMO. Miles are corrected for snow tires. Avg Speed 43 mph 66.2 mpg was the FCD estimate."
2017-02-22	581.44	8.885	$2.559	65.44	"Filled at Rte 8 Shell in Waterford CT Avg. speed 47 mph - due to road trip to PW, NY. Est. mpg (on FCD) 69.7 3.6 oz MMO included in fill data Miles are corrected for snow tires in use. Weather has been NICE! No snow for this tank. Temps slightly warmer, some days in the 50's F. that was true for the NY trip, which I'm sure helped a lot."
2017-02-28	582.42	8.936	$2.559	65.18	"Avg speed 42 mph FCD estimate 68.3 mpg She'll Gas, Rt 85 in Waterford Weather has been improving! Front grill block (the smaller one) is OK up to about 50°F outside temp. I need to remove it about 50% of the time now, or more, to prevent overheating."
2017-03-05	496.478	7.837	$2.399	63.35	"Westerly Shell, along the river. Snow Tires Factor 0.97886 42 mph avg speed est. 66.5 mpg would be 7.627 gal Fill was .211 gal over the estimate Fill amount 7.837 includes 3 oz MMO"
2017-03-12	603.95	9.041		66.8	"I really did have a ~604 mile tank. Filled at Mystic Shell on 27 by McD. Svc speed 43 mph. Est mpg: 68.3 We had some nice weather in the 50's°F. And I did some serious EOC when I had good tailwinds."
2017-03-23	564.998	9.621	$3.059	58.73	"Filled with 93 octane High Test Shell Gas, Rte 85, Waterford Avg spd 40 mph Est mpg 64.3 = 8.977 gal. Finding the actual fill this much over the estimate is unusual. I had the car facing the other way around at the pump, not my usual. So slight slope of car and tank was reversed from the usual. Or possibly the prior fill was a bit short, leaving more room for fuel in this fill."
2017-03-29	561.49	8.962	$3.059	62.65	"Avg speed 40 mph Crazy weather. Some nice, some right around freezing, some windy, some rainy. They call that ""spring"" up here in New England. Hi-test 93 octane, in prep for Green Grand Prix. Shell in Glastonbury, Main Street. Includes 2.2 oz MMO 100.1 miles into this tank, I had the snow tires removed and the RE92s reinstalled. Applied the snow tire correction factor to the first 100 miles of tank."
2017-04-06	679.1	10.898		62.31	"Green Grand Prix 2017 trip. FCD estimated mpg: 65.5 Fill includes 3 oz. MMO. Filled at Stewarts #376 in Wurtsboro, NY. Includes a partial 'fill"" of only 1.309 gal in Middletown, CT, on the way up to NY. Avg speed 44 mph. This fill was non-ethanol, 91 octane. The Middletown mini-fill was Premium E-10."
2017-04-07	187.8	2.888		65.03	"Green Grand Prix: TOPS fillup prior to track event. FCD-Estimated MPG: 64.1 mpg Fillup includes 2.265 gal at Lake's Gas in Montour Falls, and 1 ounce MMO. This fill represents the trip to Watkins Glen area from Wurtsboro, NY - where I loaded in the first E-0 fuel."
2017-04-08	276.9	4.345		63.73	"Filled with E-0, 91 octane, in Wurtsboro, NY, on trip homeward from GGP. Est. mpg 68.3 mpg Fill includes 1.8 oz MMO This tank includes the track competition (FCD 78.0 mpg) PLUS the autocross. Autocross used a lot of fuel - I needed to idle engine continuously to warm it (at high rpms), and then continue idling between the runs to keep it warmed up. The runs themselves were something like 11 mpg. The trip East from Horseheads area was relatively fuel efficient. Weather was around 38-40 at the start, and climbed during the day. Tailwind of about 15 mph was very nice. When I got home, the FCD showed 74.9 mpg for the 338.9 miles from the Horseheads area to home."
2017-04-14	727.3	9.775	$2.349	74.4	"Avg speed 42 mph (from the ScanGauge; I think it includes a certain amount of stopped time). Car's digital display indicated 74.4 mpg; this is the first time it's turned out to be accurate in approximately forever. This finished off the tank of 91 octane E-0 that I got in Wurtsboro, NY after the 2017 Green Grand Prix. Had a nice 15 mph tailwind the whole way home. Then a pretty decent 4-day week commuting; no work on Good Friday. Fill amount includes 0.51 gallons in Mystic, 4 oz Marvel Mystery Oil, and a full fillup at I-95 Exit 3 in RI. I probably could have made it all the way to the RI station without the .510 gallon mini-fill that I gave it in Mystic. Tank supposedly holds 10.6 gallons so this is a legitimate tank. Definitely my longest running and highest-mpg tank so far."
2017-04-23	600.5	8.656	$2.559	69.37	"Avg speed 40 mph Filled at Fairfield CT rest stop on I-95 southbound. Mobil. Includes 3.4 oz Marvel Mystery Oil."
2017-04-27	649.5	9.104	$2.659	71.34	"Valero, Berlin Tpk Mid-grade Avg spd 39 Est mpg 72.3 I'm assuming 4 oz MMO"
2017-05-04	640.5	9.225		69.43	"No MMO this time Est. 71.4 mpg = est. 8.970 gal. Avg. spd. 39 mph Filled at Glastonbury Shell on Main St."
2017-05-18	740.5	10.862	$2.459	68.17	"Filled at no-name station in Mass. Did a pre-fill before the MA trip, included in tot gas + mi. Includes 4 oz MMO. Avg speed 40 mph Est MPG 68.8 = 10.763 gal. estimated"
2017-05-20	635.2	9.141	$2.679	69.49	"Waterford Shell Est mpg 68.3 Avg spd 43 mph"
2017-05-26	627.4	9.765	$2.679	64.25	"42 mph avg Incl 2 oz MMO Waterford Shell, Rt 85 Est mpg 67.4. Turned out under that."
2017-06-04	606.7	8.445	$2.559	71.84	"Filled at Mobil on I-95 northbound, Branford, CT, about 6 pm on trip back home from PW, NY. Fill qty includes 2 oz MMO. Avg spd 42 mph Est mpg: 71.2 = lest fuel 8.521 gal. I did better than the estimate!"
2017-06-08	611.4	9.137	$2.679	66.91	"Incl 2 oz MMO Est mpg 68.6 40 mph avg Wtfd Shell Rte 85"
2017-06-15	606.6	8.485	$2.599	71.49	"Avg spd 49 mph Filled at art 85 Shell, Wtfd. Incl. 2 oz MMO Eat mpg: 71.2. It turned out better."
2017-06-22	530.7	8.16		65.04	"Westerly, RI Mobil on Rte 1 (Alltown) est. mpg: 68.8 Avg speed 39 mph The next day (today), I discovered left front tire was at 12 lb psi. The rest were at 52. I don't know yet if its a very slow leak or what. Likely was affecting mpg for a while."
2017-06-29	600.5	8.518	$2.379	70.5	"Mobil in Westerly, RI 2 oz MMO Estimated mpg 72.3 = Est. 8.306 gal. Actual was about .2 gal higher. Avg speed 40 mph"
2017-07-10	702.5	9.621	$2.379	73.02	"Phillips 66 in East Hartford. NOT Tier 1 fuel. Fill includes 2.5 oz MMO Avg spd 40 mph FCD Estimate: 71.2 mpg = 9.867 gal Actual was about .2 gal less than that. Weather has been ideal. Only slight rain, occasionally. Otherwise, temps are about the max I can tolerate without a/c. I use it about once or twice a week now."
2017-07-19	673.4	9.284	$2.379	72.53	"Phillips 66, Main St., East Hartford Avg speed 42 mph Est. 73.7 mpg = 9.137 est gallons Fill data includes 2 oz Marvel Mystery Oil in the fuel. That's standard for me. I had the front sway bar links replaced a couple days before this fillup. Car handles a lot better now.. Don't need to slow down as much for turns or curves."
2017-07-27	655	9.525	$2.379	68.77	"Phillips 66 East Hartford 2 oz MMO 39 mph avg spd Did not record dash mpg estimate"
2017-08-01	659.6	8.985	$2.599	73.41	"Rte 85 Shell, a Waterford, CT Eat 74.7 mpg = 8.829 gal est. Avg spd 44 mph Incl. 2 oz MMO"
2017-08-11	649.9	9.474	$2.299	68.6	"Xpress/Hess, Rte 12, Groton 40 mph avg 2 oz MMO Est 69.0 mpg = 9.419 gal Tank included some heavy rain and some nasty hot wearher."
2017-08-21	652.5	9.272	$2.299	70.37	"Xpress Fuel Incl 2 oz MMO Avg spd 42 mph Est mpg 71.4"
2017-08-28	620.1	8.6	$2.299	72.1	"Xpress Fuel Incl 2 oz MMO Avg spd 45 mph Est mpg 74.2"
2017-09-04	620	9.286	$2.599	66.77	"Xpress Fuel, Groton Est mpg: 69.5 Avg spd: 41 mph Incl 2 oz MMO"
2017-09-12	626	8.656	$2.659	72.32	"Xpress Fuel in Groton Avg spd 43 mph Includes 1 oz MMO Est mpg: 72.6"
2017-09-16	345.2	4.932	$2.659	69.99	"Fillup one day before NY road trip. Est mpg, 73.0 A good spd 42 mph Xpress Fuel in Groton Incl 1 oz MMO."
2017-09-22	663	9.559	$2.659	69.36	"Includes trip to PW, NY. Avg spd 47 mph - much higher than my usual. Been commuting a bit faster, it's not just from the NY trip. Xpress Fuel in Groton. Incl. 3 oz MMO Did not note the estimated mpg."
2017-09-29	666	9.657	$2.559	68.97	"48 mph avg Incl 2 oz MMO Xpress Fuel, Groton"
2017-10-09	737.8	11.275	$2.559	65.44	"Xpress Fuel, Groton Includes 2 oz MMO"
2017-10-16	592	9.025	$2.539	65.6	"Xpress Fuel, Groton 44 mph avg Incl 2 oz MMO Est. 69.3 mpg"
2017-10-23	638.1	9.691	$2.769	65.84	"Filled at Cumberland Farms, Glastonbury, CT Est 69.0 mpg Avg spd 47 mph Fill record includes 2 oz Marvel Mystery Oil = MMO"
2017-10-29	566.9	9.121	$2.539	62.15	"Xpress Fuel, Groton, CT est. mpg: 66.9 avg spd: 45 mph Includes 2 oz MMO"
2017-11-06	542.1	8.083	$2.859	67.07	"Filled at 184 Mobil, Mystic Est. 65.5 mpg avg speed 39 mph no MMO this time"
2017-11-30	586.1	9.583	$2.539	61.16	"Est. mpg: 64.1 Avg spd: 41 mph Includes 2 oz Marvel Mystery Oil Filled at Express Fuel, Groton"
2017-12-03	473.3	7.5	$2.539	63.11	"Express Fuel, Groton Est. mpg: 66.9 Avg Speed: 42 mph"
2017-12-06	328.6	4.784	$2.599	68.69	"No MMO this time. Filled at Mobil on Rte 12 near Honda dealer - because I used their free air pump for a while. Est mpg. 65.5 Avg spd. 42 mph"
2017-12-23	405.4	7.534	$2.859	53.81	"Mystic Mobil, Rt 27 near I-95 Avg spd 34 mph est. 58.7 mpg Includes Winter Tires Factor 0.97886"
2018-01-09	543.9	9.799		55.51	"Fill includes 2 oz MMO. FCD estimate: 58.9 mpg. 42 mph average. This would have included several weeks of local driving; I was out of work beginning Nov. 1. Includes Winter Tires Factor 0.97886"
2018-01-18	557.1	8.902		62.58	"Est mpg: 64.1 Avg spd: 45 mph Fill includes 2 oz MMO Includes Winter Tires Factor 0.97886"
2018-01-30	751.9	12.231	$2.959	61.47	"This includes a pre-fill a few days before, 3.253 gallons. Est mpg: 64.6 Avg spd: 47 mph No MMO noted on receipts so I didn't add it into the fuel qty. Includes Winter Tires Factor 0.97886"
2018-02-13	744.9	13.423	$2.759	55.49	"Includes 2 pre-fills. Avg spd 42 mph Est Mpg 61.3 Includes Winter Tires Factor 0.97886"
2018-02-21	677.3	10.302	$2.559	65.74	"Est mpg: 66.7 Avg spd: 44 mph Includes 2 oz MMO Includes a pre-fill; I didn't get 691 miles on the tank without that assist. Includes Winter Tires Factor 0.97886"
2018-03-07	632	10.328	$2.559	61.19	"Est. mpg: 63.2 Avg spd: 42 mph Fill includes 2 oz MMO REFERENCE NOTE: Includes Winter Tires Factor 0.97886 Winter tires installed prior to the 12/23/17 fillup. I had them balanced 12/10 before mounting them."
2018-03-19	586.9	9.648	$3.379	60.83	"High test: 92 or 93 octane. On I-95 northbound, Madison, CT Avg spd 46 mph Est. mpg: 64.6 mpg No MMO this time. High octane in preparation for upcoming Green Grand Prix, Apr. 13."
2018-04-12	658.3	9.934	$3.599	66.27	"Car had been very lightly used for several weeks, then put up on ramps + jack stands for two weeks prior to Green Grand Prix for belly pan build project. Thus no fillup for about a month. This fill at Dutch's Market in Greentown, PA. Fill amount also includes a pre-fill of 0.700 gal about 30 miles prior - I may not have made it to Dutch's otherwise! No Marvel Mystery Oil was being used prior to the GGP. This fill: 91 octane, no ethanol, no MMO. Pre-fill: 93 octane, no MMO, but WITH ethanol Est mpg: 66.2 Avg speed: 46 mph From home to Dutch's: 215 miles, per Google's route"
2018-04-13	161.7	2.694	$3.109	60.02	"Ethanol-Free at Lakes Gas in Watkins Glen. (2.2 gal) Plus 0.494 gal at the required fill at TOPS Gas in WG. Total 2.694 Est MPG unknown, sorry No MMO used. They had us do our own fills at TOPS this year. I gave it an extra squeeze so it was pretty full. That likely accounts for the lowish mpg calc'd off this fill. Also, the Lakes pump is an old school one with rotating number wheels. Likely not nearly as accurate as modern pumps."
2018-04-14	133	1.929	$3.099	68.95	"Coldiron Fuel in Elmira, after breakfast at Anne's Pancakes Natural. Google did an awful job of getting me to this place. 2000 College Avenue, Elmira. Pump is in the back in the diesel truck filling area. 35 mph avg. no est. mpg These miles include the GGP competition plus driving around the WG/Elmira area."
2018-04-14	172.4	2.901	$3.359	59.43	"Est mpg. 73.3 ! Stewarts Shop #376, Wurtsboro, NY Nice new, small Vegetarian restaurant in this town. I don't know how or why the calc'd mpg is so different from the estimate on the car's computer. The fillup location is sloped. Maybe that's it. The next fillup data may balance this off."
2018-04-20	682.7	9.565	$3.149	71.37	"Now I'm back to regular 10% ethanol fuel, with MMO added. Filled in Mystic, Rte 27 Shell near McDonald's. Est. mpg 68.6 Avg speed 48 mph Includes 2 oz. MMO"
2018-04-25	410.2	6.459	$2.839	63.51	"I only could take 6.459 gal, but since I was in Westerly anyway, where gas is a bit cheaper, I filled up there. Shell on Main Street, approaching Beach Street. Includes 1.5 oz MMO 44 mph avg. Est. mpg: 66.2"
2018-05-08	862.8	12.908	$2.859	66.84	"Xpress Fuel in Groton avg speed 47 mph est. 70.2 mpg incl. 2.5 oz MMO"
2018-05-15	618.2	8.894		69.51	"Gulf on Mass Tpk 68.6 est. mpg avg speed 46 mph includes 0.016 gal MMO"
2018-05-21	573.5	8.497	$2.879	67.49	"Xpress Fuel est. mpg: 6.79 Avg spd: 45 mph includes 1.5 oz MMO."
2018-05-31	724.6	10.63	$2.959	68.17	"Xpress Fuel Groton Includes a 2.005 gal pre-fil the day before. 70.2 est. mpg avg speed 46 mph Includes 2 oz MMO"
2018-06-07	623.6	9.069	$2.959	68.76	"Xpress Fuel Groton Includes 2 oz MMO est mpg: 96.3"
2018-06-28	586.7	8.965	$2.939	65.44	"Incl. 2 oz MMO Est. 68.1 mpg avg 42 mph"
2018-07-05	559.7	9.201	$2.939	60.83	"Est. 63.2 mpg avg spd 42 mph includes 2 oz MMO"
2018-07-12	512.9	7.885	$2.939	65.05	"Est. 65.5 mpg avg 45 mph incl. 2 oz MMO"
2018-07-23	566.1	9.435	$2.939	60	"Estimated 63.2 mpg Avg spd 42 mph Fill includes 2 oz MMO"
2018-08-12	451.4	7.856		57.46	"No MMO in this fillup estimated 58.0 mpg 29 mph avg speed"
2018-08-31	503.7	9.2	$3.259	54.75	"Est. 55.4 mpg avg spd 29 mph no MMO noted on receipt"
2018-10-24	536.8	9.145	$2.899	58.7	"59.6 est. mpg avg 29 mph includes 2 oz MMO"
2018-11-05	370.2	6.312	$2.729	58.65	"Est. 61.3 mpg avg spd 37 mph includes 1.5 oz MMO"
2018-11-13	537.3	9.088	$2.859	59.12	"est 62.2 mpg 45 mph avg Incl. 2 oz MMO"
2018-11-19	491.9	8.92	$2.899	55.15	"Stop + Shop station in Glastonbury MMO not noted on receipt est. 58.5 mpg avg spd 48 mph"
2018-12-04	496	8.833	$3.499	56.15	"This was the fillup immediately after having the spark plugs replaced. Also had snow tires put on in the same shop visit. Winter Tires Factor 0.97886 (use for subsequent fills) Because the snow tires are slightly smaller diameter. High-test Est. 58.5 mpg avg 40 mph Patrick Sullivan Station, 8:44 a.m. 382 Vauxhall St, New London"
2018-12-09	498.04	8.385	$2.719	59.4	"Xpress Fuel - Groton est. 62.7 mpg (oem computer) Avg spd unknown - ScanGauge computer reset itself when battery power dropped too low. Distance corrected for snow tires."
2018-12-18	553.56	9.073		61.01	"Xpresss Fuel Groton HIGH TEST - 93 octane No MMO in this fill. Est. 63.9 mpg No avg speed - it zeroed out."
2019-01-03	544.93	8.808	$2.649	61.87	"Cumberland Farms, Glastonbury estimated 64.8 mpg 50 mph average (!) fill includes 2 oz MMO Distance corrected for snow tires. NOTE: Driving this tank, it may be going into lean burn less often and less easily. Cheap Cumby Farms gas might not be the best."
2019-01-09	544.93	8.931	$2.499	61.02	"Xpress Gas Groton No MMO this fill. Distance corrected for snow tires. No avg. speed."
2019-01-16	594.07	9.869	$2.479	60.2	"Includes 2.5 oz MMO Xpress Gas, Groton 49 mph avg. (over 493 mi of the tank) Car's B trip zeroed out due to fumble fingers. Distance derived by math and confirmed by ScanGauge. So, no estimated MPG. Replaced 12V battery on 1/13/2019. Old was AGM, undersized, 20AH capacity. New is AGM Group 51 by ""Champion"". I fully charged it in garage before installation. It needed about 1.5 hours at 10A to show as fully charged."
2019-01-22	474.26	7.958	$2.479	59.6	"Xpress Gas, Groton est. mpg: 62.5 Avg speed 48 mph Now running on new AGM battery, stock Group 51 size. It started off that battery at 1ºF!"
2019-01-28	510.38	8.639		59.08	"Xpress Fuel Groton Est mpg: 62.5 Avg spd: 48 mph"
2019-02-01	474.94	8.019		59.23	"Village Market, Ledyard CT No MMO Est mpg: 63.2 Avg spd: 51 mph"
2019-02-15	485.81	8.25	$2.419	58.89	"Xpress Fuel Groton Est. mpg: 64/3 Avg spd: 48 mph"
2019-02-22	568.42	9.448	$2.379	60.16	"Xpress Fuel Groton Est mpg: 62.7 Avg spd: 50 mph incl. 2 oz MMO"
2019-03-03	674.43	11.522	$2.359	58.53	"Xpress Fuel, Groton est. 62.2 mpg 49 mph avg No MMO"
2019-03-11	490.41	8.575	$2.439	57.19	"Shell Henny Penny Rte 12 Groton 501 mi. Est 61.3 mpg avg spd 50 mph"
2019-03-16	561.96	9.159	$2.499	61.36	"Shell Henny Penny on Rt 12 Groton No MMO 54 mph avg spd Est. mpg: 65.0"
2019-03-29	142.91	2.299	$3.179	62.16	"Shell high test in Norwich on the way to work. 2 oz MMO included in fill. Added because I felt minor bucking when going in/out of lean burn. Been running without MMO for a while; I think the passages might need a bit of a cleaning. Distance is corrected for winter tires. They were swapped off about 40 miles before this fillup. Now back on summer Potenzas! Green Grand Prix is ONE WEEK from today!"
2021-11-30	521.928	9.41	$3.369	55.47	"On Nov 4 2021, I started commuting again, about 50 miles each way. So I'll log my fillups here. Been working very few hours, and from home, since Mar. 2020. I've been commuting on snow tires so.... Winter Tires Factor 0.97886 (They're a slightly smaller outer diameter due to being 155 width instead of 165. That's what was available for my Gen. 1 Insight.)"
2021-12-10	560.005	9.912	$3.279	56.5	"Yesterday I put the radiator blocker in. It fits between the rad and the AC condenser. I should have done that sooner, but at least it's in now. I have a nice grill/bumper cover that I didn't even bother putting on last winter. Hopefully I'll be able to install it tomorrow, Saturday. :-) I aired up my tires to 46 psi before I restarted commuting, just before Thanksgiving. I should check them this weekend; it's been colder. Sometimes around 30ºF in the mornings, usually between 30-35º. I used to keep them around 50 psi; I might do that again."
2021-12-21	509.11	8.179	$3.259	62.25	""
2022-01-04	519.21	9.295	$3.279	55.86	""
2022-01-13	479.84	9	$3.259	53.32	"All entries currently use the factor *.97886 to correct for the smaller diameter of my winter tires."
2022-01-25	500.3	9.382	$3.289	53.33	""
2022-02-03	530.6	9.198	$3.379	57.69	"XPress Fuel in Groton, CT."
2022-02-18	519.9	9.544	$3.429	54.47	""
2022-03-03	558.24	10.609	$3.859	52.62	"I did a pre-fuel on Mar 2. Numbers here are a total for the Mar 2 and Mar 3 fuelings. Miles are corrected downward for the slightly smaller winter tires."
2022-03-10	384.2	7.143	$4.259	53.79	"I fueled early due to an incoming storm."
2022-03-18	517.52	9.1	$4.179	56.87	"Distance corrected by a factor of 0.97886 for the winter tires. I've been meaning to track Avg Speed Per Tank here. Maybe this note here will remind me..."
2022-03-29	561.1	9.916	$4.059	56.59	"Avg Speed: 50 mph (from ScanGauge)"
2022-04-07	556.4	10.245	$3.739	54.31	"Avg speed 54 mph (ScanGauge shows this in even miles) Still on winter tires. They should come off soon."
2022-04-15	591.23	10.194	$3.619	58	"Avg speed: 49 mph I'm still on winter tires. I need to get the regular ones back on the car!"
2022-04-26	507.8	8.373	$3.799	60.65	"Avg speed: 52 mph. Berlin Gulf - not the Citgo. I believe Citgo shows and charges a larger qty of fuel than was actually pumped. Because my tank is only 10.6 gal and I've had several fills very close to that at Citgo - but the gauge didn't say the tank was nearly empty."
2022-05-03	432.1	8.115	$3.979	53.25	"Avg spd: 49 mph"
2022-05-12	515.3	8.687	$4.179	59.32	"Avg speed: 47 mph"
2022-07-06	382.4	6.42	$4.559	59.56	"Avg Speed: 35 mph."
2022-08-21	420.4	8.396		50.07	""