2012-11-06	284	17.5	$3.39	16.23	"Driven 100% in town. Engine runs rough once in a while, no CEL. Dash MPG read out was 16.2mpg"
2012-11-14	257	14.3	$3.27	17.97	"Only 90% city driving this time, made a couple of short highway trips. I removed the spare tire and its jack, also aired up tires for this tank. I also didn't fill at my normal gas station because gas happened to 8 cents cheaper with out driving out of my way for it. Dash MPG meter was reading 18.1MPG for this tank."
2012-11-25	302	18.1	$3.2	16.69	"90% in stop and go taxi cab driving. Instant MPG was showing 16.8MPG"
2012-12-02	291	15.87	$3.16	18.34	"90% city driving again, instant MPG was showing 18.7MPG Filled up at my regular gas station, but on another pump."
2012-12-05	230	12.03	$3.16	19.12	"Drove as primary vehicle for a few days, at least 20% highway driving. Instant MPG was showing 18.7MPG added 6oz 2-stroke oil for next fill up"
2012-12-24	170	9.26	$2.999	18.36	"Dash MPG display was showing 17.8MPG. Its been getting cold here."
2012-12-28	159	7.7	$3.26	20.65	"Didn't record the dash MPG reading this time. For the holidays we have been highway driving the town car more, doing less cab type work with it. After this tank, half way into the next tank of gas I replaced the TPS and deleted the air intake silencer box, due to the fact the coupling attaching to main air intake pipe was seperating, allowing a small amout of dirt past the air filter and small amount of air mass to get past the MAF unmeasured. Still trying to figure out the 35mph to 45mph intermitant miss, that is slowly becoming more and more of a regular occurance."
2012-12-30	207	11	$2.999	18.82	"About to do an oil change and spark plug change for next tank. If you don't know changing the spark plugs on a 4.6L engine sucks. Some dumb ass put the spark plugs on this engine on the inside of the lifter valley right next to the fuel injectors, under the fuel rail. Changing spark plugs is going to be a PITA."
2013-01-06	315	16.8	$2.999	18.75	"Dash MPG meter showed 18.8 and didn't see much highway driving. Changed the oil but not the plugs for the next tank. Also changed fuel filter for next tank, don't know if that could make a difference."
2013-01-16	412	22.58	$2.98	18.25	"The rough running is issue a thing of the past. I changed the fuel filter and its totally gone. I have a feeling the last time the fuel filter was changed was when it rolled down the assembly line. Dash MPG read 18.3 This tank was on a fresh oil change using rotella 5w-40 weight heavy duty synthetic diesel engine oil."
2013-01-20	301	14.6	$2.89	20.62	"About 1/4 of this tank was all highway. Dash MPG showing an even 20mpg"
2013-01-20	118	5.6	$3.1	21.07	"Dash display MPGs read 21.1 MPG for this trip, mostly highway driving, average speed over those 118 miles was 52MPH. Had plenty of cross winds."
2013-01-30	246	13.591	$3.2	18.1	"This is the first tank on the new plugs. Not very impressive. I also left the spare and jack in for this tank. Its comeing back out for sure. Dash MPG showed 18.1MPG and average speed was 27mph."
2013-02-08	267	14.8	$3.33	18.04	"Removed tire and jack, its been installed the 3 fill ups before this. A highway trip to and from and one around town. Dash MPG was showing 17.9mpg. Average speed was 26mph."
2013-02-16	212	12.4	$3.36	17.1	"Dash display reads 17.1MPG Average speed was 24mph"
2013-03-02	198	12.68	$3.5	15.62	"The weather here has been very cold for the duration of this tank. Average speed 21 mph Dash MPG read 15.6 MPG"
2013-03-12	234	14.375	$3.44	16.28	"Lots of city driving. 21mph average speed. Dash MPG read 16.1"
2013-03-28	330	15.731	$3.5	20.98	"Mostly highway driving. 27mph average speed Dash MPG read 20.1 Dissconnected the A/C blower and aired up the tires, had one tire down to 22psi."
2013-04-05	314	16.01	$3.44	19.61	"Did some highway driving this tank. Avg speed was 26mph."
2013-04-22	305	17.9	$3.33	17.04	"Some highway driving, 22mph average speed."
2013-04-29	257	10.88	$3.24	23.62	"Mostly highway driving. 42mph average speed Dash MPG display showed 23.2MPG. Calm winds for once."
2013-05-05	234	11.06	$3.2	21.16	"About 60% in town driving. Did I highway trip with some cross wind, 34mph average, dash MPG display read 20.3."
2013-05-05	84	3.2	$3.25	26.25	"This is what kind of highway milage the town car can get with calm to no wind and keeping the speed down to between 66 and 68 MPH with the cruise control. Dash MPG display read 26.3, average speed was 64MPH."
2013-05-31	297	13.1	$3.3	22.67	"Road trip with 30+mph cross winds. I was headed south almost the entire way and the winds were trying to go NE in a hurry. Instant MPG read 22.8 Average MPH was showing 46mph. Cruse control was set at 70 most of the way."