[whatjigg]

Hello Everyone,

I've been tracking my fuel economy in the last three months and attempting a number of the different hypermiling techniques and seeing very minimal changes (maybe even changes that are not statistically significant). I drive in Ottawa, ON, Canada and the car is rating at 5.4L/100Km Highway and 7.4L/100Km City, and 50/50 Mix of 6.4L/100Km. My goal was to get within 10% of these numbers or match them.

I established some baselines back in August when I began doing this. I always fill up at the same station and same pump number (#5) with the pump nozzle pushed as far in as it goes and fill up to automatic stop level (i.e. no topping up). Below you will find the three months worth of results I've had with the notes on the side indicating what type of changes were made.

As per changes in driving habits, I have followed, for the most part, these suggestions: turn off engine at long lights, pulse & glide, glide down hills and use the terrain to my advantage, drive like grandpa but slower (never exceeded 87km/h on highway and usually aim to drive at 2000rpms), shift points at 2500rpm or less and w/out lugging engine, drive like i don't have breaks and avoid full stops (rolling stop signs),and later on keeping the windshield venting off as much as possible along with other in car accessories just in case.

Summary of my results:
Average Fuel Economy: 8.55L/100Km
Average City/Highway Mix: 47% City / 53% Hwy
Weighted Percentage Above EPA (taking into account city/hwy mix and expected city/hwy mix weighted): 35%
Average Improvement of Fuel Economy w/ Hypermiling: 3-4%

And here's all the data:

Date Fuel Distance Fuel Economy City Highway Weighted EPA Goal % Above EPA Notes

12-Aug-08 26.732L 283.2Km 9.44 L/100Km 65% 35% 6.7 L/100Km 40.88% Baseline Reading

17-Aug-08 20.889L 277.6Km 7.52 L/100Km 20% 80% 5.8 L/100Km 29.74% Baseline Reading

22-Aug-08 7.720L 112.3Km 6.87 L/100Km 20% 80% 5.8 L/100Km 18.52% Tire Press. ↑ 37psi; Pulse & Glide; Engine Shutoffs; Speed Limits;

01-Sep-08 10.115L 108.1Km 9.36 L/100Km 50% 50% 6.4 L/100Km 46.20% Never exceed 87km/h, drive like grandpa, + all above

5-Sep-08 17.294L 183.9Km 9.40 L/100Km 40% 60% 6.2 L/100Km 51.68% same techniques

12-Sep-08 15.000L 154.3Km 9.72 L/100Km 75% 25% 6.9 L/100Km 40.89% same techniques

21-Sep-08 33.476L 483.0Km 6.93 L/100Km 10% 90% 5.6 L/100Km 23.77% same techniques

24-Sep-08 13.273L 137.4Km 9.66 L/100Km 50% 50% 6.4 L/100Km 50.94% normaler - shutoffs for long delays, lower rpm shifts, 87Km/h max

30-Sep-08 29.121L 396.2Km 7.35 L/100Km 20% 80% 5.8 L/100Km 26.72% normaler - shutoffs for long delays, lower rpm shifts, 87Km/h max

6-Oct-08 36.549L 528.7Km 6.91 L/100Km 15% 85% 5.7 L/100Km 21.28% all techniques employed

11-Oct-08 16.885L 176.5Km 9.57 L/100Km 80% 20% 7.0 L/100Km 36.71% all techniques employed

17-Oct-08 22.374L 235.9Km 9.48 L/100Km 95% 5% 7.3 L/100Km 29.93% all techniques employed

3-Nov-08 38.332L 533.1Km 7.19 L/100Km 10% 90% 5.6 L/100Km 28.40% more 'normal' as above

10-Nov-08 12.499L 131.2Km 9.53 L/100Km 85% 15% 7.1 L/100Km 34.18% all techniques employed

17-Nov-08 16.174L 172.8Km 9.36 L/100Km 65% 35% 6.7 L/100Km 39.70% Stopped windshield heater and min. use of features, + all above



Please let me know what you think. I even brought the car into service at the dealership to tell me what they think and to take a look at it. I'm convinced they didn't look at anything. I'm very interested in comparing numbers if you also have an 06-09 Civic along with driving techniques.

Do you think:
- Resetting the ECU will help?
- Adding a cold air intake?
- Other???

Thanks again, Cheers!

btw, i've also posted the same post on hypermilingforum.com