Quote:
Originally Posted by JRMichler
I ran some quick tests to find which gear was best to climb a local hill. This testing does not come close to meeting the standards in http://ecomodder.com/forum/showthrea...ery-11445.html, but I thought the results might be of interest.
I regularly climb a certain hill. The engine is always fully warmed up, and I normally drive it at 55 MPH in 4th gear. For the test, I also tried 3rd and 5th gears while eyeball averaging the Scangauge MAP and instantaneous MPG displays. The results:
Gear RPM MAP MPG OAT
3rd 3380 10.0 11.7 43 deg F
4th 2470 11.7 13.5 37
4th 2470 12.0 13.2 35
5th 1800 13.9 15.0 27 Unable to maintain speed. |
I got another data point. This time I went up the hill in 4th gear, setting the throttle so as to bleed off the same amount speed as in the 5th gear test. Results:
Gear RPM MAP MPG OAT
4th 2470 10.7 15.1 32 deg F
I estimate the best efficiency RPM at about 2800. Fourth gear puts the engine closer to its best efficiency point than 5th gear, but at an inefficient MAP. It appears that those two effects cancel each other out at this power setting and speed.
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06 Canyon: The vacuum gauge plus wheel covers helped increase summer 2015 mileage to 38.5 MPG, while summer 2016 mileage was 38.6 MPG without the wheel covers. Drove 33,021 miles 2016-2018 at 35.00 MPG.
22 Maverick: Summer 2022 burned 62.74 gallons in 3145.1 miles for 50.1 MPG. Winter 2023-2024 - 2416.7 miles, 58.66 gallons for 41 MPG.
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