Quote:
Originally Posted by BHarvey
.2 gph at idle,
coasting 1 mile at 60 mph (1 minute coast) with engine at idle consumes .0033 gallon
1 gallon / .0033= 303.
This means you would have to engine off coast for one mile 303 times to save a gallon.
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I was figuring about half of the fuel usage at .1 gallons per hour. My car is a 4 cyl. 5 speed that idles at 650 rpm, so I would have to coast 606 times to save 1 gallon. It just doesn't seem worth it, especially on the shorter coasts. Where the coast is over 1 mile maybe.
I don't have a Scangauge. My car is OBD0.
I did achieve my goal of 40MPG this week. I took a slightly longer but not as hilly route to work.