| Fill date |
Distance |
Fill amount |
Price |
MPG |
Details |
| 2009-11-16 |
95.6 mi. |
2.82 US gal |
$3.199 |
33.9 US |
10th tank electrolyzer, to MAP sensor, foil on o2 zip tied. Definitely switched to winter blend. Will remove electrolyzer and o2 mod to get a new winter baseline.
60*F at fillup, 66hyw/34city, Tustin Ranch Shell, pump #5 |
| 2009-11-09 |
130.9 mi. |
4.15 US gal |
$3.219 |
31.54 US |
9th tank electrolyzer, to MAP sensor, foil on o2 mod zip tie.
60*F at fillup, 50hwy/50city, Tustin Ranch Shell, pump #5. |
| 2009-11-05 |
152.6 mi. |
4.18 US gal |
$3.219 |
36.51 US |
8th tank Electrolyzer in MAP sensor (pre throttle body), zip tie o2 mod, tires back up to 35psi.
64*F at fillup, 66hwy/34city, Tustin Ranch Shell, pump #5 |
| 2009-10-30 |
75.3 mi. |
2.7 US gal |
$3.219 |
27.89 US |
7th fill with Electrolyzer, moved to MAP sensor (pre throttle body), zip tie o2 mod, noticed tire psi was low (30's). Refill psi back to 35.
54*F at fillup, 13hwy/87city, Tustin Ranch Shell, pump #5. |
| 2009-10-20 |
85.3 mi. |
2.47 US gal |
$3.239 |
34.53 US |
6th Tank Electrolyzer, O2 foil.
61*F, 62hwy/38city, Tustin Ranch Shell, pump #5. |
| 2009-10-15 |
63.8 mi. |
1.96 US gal |
$3.219 |
32.55 US |
5th tank Electroylyzer, with o2 mod. Not sure if more city driving or Shell switched to winter blend. Will run for one more test, then remove everything back to stock.
65*F at fillup, 41hwy/59city, Tustin Ranch Shell, pump #5. |
| 2009-10-12 |
321.1 mi. |
9.8 US gal |
$3.219 |
32.77 US |
4th Tank Electrolyzer, installed 02 mod.
61*F at fillup, 50hwy/50city, Tustin Ranch Shell, pump #5 |
| 2009-09-30 |
357.5 mi. |
10.4 US gal |
$3.299 |
34.38 US |
3rd Tank Electrolyzer.
61*F at fillup, 55 hwy/45 city, Tustin Ranch Shell, pump #5 |
| 2009-09-13 |
276.4 mi. |
8.53 US gal |
$3.339 |
32.4 US |
2nd Tank Electrolyzer. Looks like getting similar results as before. No change to slightly lesser mpg's.
67*f at fillup, 48hwy/52city, Tustin Ranch Shell, pump #5 |
| 2009-09-02 |
346.6 mi. |
10.07 US gal |
$3.219 |
34.42 US |
1st. Tank Electrolyzer. Hot summer night!
73*F at fillup, 55hwy/45city. Tustin Ranch Shell, pump #5. |
| 2009-08-19 |
265.5 mi. |
7.8 US gal |
$3.219 |
34.04 US |
ALL STOCK. At 1/2 tank, installed Alternator disable switch. Didn't seem to make any difference. Going to start the HHO experiment again now that I have a good consistent baseline mpg rating.
66*F at fillup, 56hwy/44city, Tustin Ranch Shell, pump #5. |
| 2009-08-07 |
348.4 mi. |
10.22 US gal |
$3.259 |
34.09 US |
ALL STOCK, slightly more highway miles.
66*F at fillup, 54hwy/46city, Tustin ranch shell, pump #5 |
| 2009-07-24 |
330.6 mi. |
9.83 US gal |
$3.059 |
33.63 US |
ALL STOCK, more city driving.
70*f at fillup, 46hwy/54 city, Tustin Ranch Shell pump #5 |
| 2009-07-08 |
342 mi. |
10.32 US gal |
$3.159 |
33.14 US |
ALL STOCK. Mostly highway miles again, however, it was all driving 70+ mph so the vacuum gauge needle was constantly below my targeted 15in.
64*F at fillup, 58hwy/42city, Tustin Ranch Shell, pump #5. |
| 2009-06-24 |
348.4 mi. |
9.51 US gal |
$3.23 |
36.64 US |
ALL STOCK, more highway miles.
64*F at fillup, 59hwy/41 city, Tustin Ranch Shell, pump #5. |
| 2009-06-15 |
325 mi. |
9.93 US gal |
$3.219 |
32.73 US |
All stock.
64*F, 48hwy/52city, Tustin Ranch Shell pump #5 |
| 2009-06-04 |
89 mi. |
2.84 US gal |
$3.059 |
31.34 US |
Accidentally reset trip meter while cleaning up gauge cluster.
Not sure of ambient temp or highway/city ratio, Tustin Ranch Shell, pump #5. |
| 2009-06-02 |
329.9 mi. |
9.99 US gal |
$3.059 |
33.02 US |
All stock. Failed smog check due to bad catalytic converter (3rd one!) Replaced catalytic converter and installed a brand new O2 sensor. Wow! Look at the difference in the mileage boost with all of this city driving! I think it's time to restart my HHO project with the new O2 sensor to see if the readings fluctuate.
62*F at fillup. 19hwy/81city. Tustin Ranch Shell, pump #5. |
| 2009-05-12 |
303.6 mi. |
10.54 US gal |
$2.699 |
28.8 US |
5th tank with Electrolyzer. LOTS of city driving.
60*F at fillup, 47hwy/53city, Tustin Ranch Shell, Pump #5. |
| 2009-05-02 |
291.3 mi. |
10.22 US gal |
$2.53 |
28.5 US |
4th Tank Electrolyzer. LOTS of city driving. Started keeping a more accurate log of hwy/city driving.
62*F at fillup. 33Hwy/67City. Tustin Ranch Shell, pump #5. |
| 2009-04-23 |
338.7 mi. |
10.32 US gal |
$2.559 |
32.82 US |
3rd tank with Electrolyzer. Showing some improvement finally, with even less highway miles this tank.
*59F at fillup, 60hyw/40 city. Shell Tustin Ranch, pump #5
*4/24/09 update, checked under hood and discovered electrolyzer was not producing HHO due to loose connection. Perhaps I could've achieved better mileage? |
| 2009-04-17 |
111.9 mi. |
4.02 US gal |
$2.539 |
27.84 US |
ACK!! 2nd tank with Electrolyzer installed. Tried the cheap O2 mod, but obviously made the MPG worst, decided to fill up early and try something else.
Did some research, going to re-do the cheap O2 mod, but make a better seal around the sensor. Also, "T'd" the hydrogen into the IAB port instead of the Evap Purge port. Let's see what happens.
*58F at fillup. 60hwy/40city. Shell Tustin Ranch, pump #5. |
| 2009-04-14 |
312.2 mi. |
9.85 US gal |
$2.539 |
31.7 US |
1st tank with Electrolyzer installed. Bleh, same as before. However, less HWY driving than usual (65/35) so maybe it's a good result? I think I'll try the O2 sensor "cheap mod" next. The water4gas manual says this mod is the "turning point" in terms of gas-saving.
*WARNING do not attempt to make your motor run LEAN without a Hydrogen On Demand system installed. NOTE TO SELF, listen for engine knock, and check spark plugs regularly.
*60F at fillup. 65hwy/35city. Shell Tustin Ranch, pump #5. |
| 2009-04-05 |
30.1 mi. |
0.74 US gal |
$2.559 |
40.68 US |
2nd quick test with Electrolyzer installed. 100% highway. Again, looks promising. Lets see if my car's ecu decides to defeat the HHO by riching up the Air/Fuel ratio.
*65F at fillup. 100% hwy. Shell Tustin Ranch, pump #5. |
| 2009-04-05 |
30.1 mi. |
0.7 US gal |
$2.559 |
43 US |
1st quick test with Electroylzer installed. Looks promising. 100% highway driving.
*66F at fillup. 100% hwy. Shell Tustin Ranch, pump #5. |
| 2009-04-05 |
11.4 mi. |
0.46 US gal |
$2.559 |
24.78 US |
Quick fill up before installing HHO Electrolyzer. All City mpg btw.
*All city. Shell Tustin Ranch, pump #5. |
| 2009-04-05 |
121.1 mi. |
3.49 US gal |
$2.559 |
34.7 US |
Helped sister move 60 miles to new house. Definitely used more hypermiling techniques (EOC, P&G, Drafting). All stock. Finally able to fill up at regular pump. May still need to disregard this reading for HHO experiment due to hypermiling and pump. Highest MPG EVER achieved since owning the car.
*99% hwy. Tustin Ranch Shell, pump #5. |
| 2009-04-04 |
241.6 mi. |
8.08 US gal |
$2.559 |
29.9 US |
Had to help sister move. Gas station full, could not wait for my usual gas pump. Had to fill up using different gas pump. May need to disregard these results for HHO experiment.
*71F at fillup, Mostly hwy. Shell Tustin Ranch, pump #1 |
| 2009-03-27 |
328 mi. |
10.36 US gal |
$2.459 |
31.66 US |
5th tank: NO Vaporizer, all stock. i SWEAR i've NEVER gotten this much mileage ever since the engine swap, no matter how slow i drive.
Installed vacuum gauge half tank.
Maybe this HHO deal is a scam? I have faith, must stay diligent. I think next tank I'll install the actual HHO generator in my car. Or maybe I should put the Vaporizer back in just to double check? Hopefully I should get more consistent results now with the vacuum gauge installed.
*68F at fillup. Mostly hwy, Shell Tustin Ranch, pump #5 |
| 2009-03-20 |
281.5 mi. |
8.97 US gal |
$2.339 |
31.38 US |
4th tank: Removed "Vaporizer." Hm....
*56F at fillup. Mostly hwy. Shell Tustin Ranch, pump #5 |
| 2009-03-15 |
309.3 mi. |
9.79 US gal |
$2.359 |
31.59 US |
3rd tank with HHO "Vaporizer" installed.
*56F at fillup. Mostly hwy. Shell Tustin Ranch, pump #5. |
| 2009-03-09 |
330.9 mi. |
10.14 US gal |
$2.359 |
32.63 US |
2nd tank with HHO "Vaporizer" installed.
*57F at fillup. Mostly hwy. Shell Tustin Ranch, pump #5. |
| 2009-03-04 |
313.6 mi. |
10.05 US gal |
$2.399 |
31.2 US |
1st tank with HHO "Vaporizer" installed.
*54F at fillup. Mostly hwy. Shell Tustin Ranch, Pump #5. |
| 2009-00-02 |
346.6 mi. |
10.07 US gal |
$3.219 |
34.42 US |
1st Tank Electrolyzer
73*F, 55hwy/45city, Tustin Ranch Shell, pump #5. |
