Here are the data from my family's three cars. The left-hand bumps are P&G figures. The following dips are next-to-top gear mpg. The remainder of each graph line are the top gear mpg figures at different speeds. One gear down from top gear at 30 mph beats top gear at 55 mph in all of my cars, with the possible exception of the AT Elantra. It should in your cars/trucks, too.
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Darrell
Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
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