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Slower is better for mpg. I used to P&G in 4th gear from 25-40 mph. 8 seconds pulse, 24 second glide, 55-60 mpg. Dropped it to 3rd gear from 20-30 mph, and the P:G ratio is about 7 seconds pulse, 40 seconds glide, 60-70 mpg. Just for kicks, I tried 10 miles of 2nd gear P&G (10-20 mph). That's about 3 seconds pulse, 30 seconds glide, and 94.5 mpg! 5th gear highway P&G from 50-60 mph is about 9 seconds pulse, 16 seconds glide, and 45-50 mpg. YMMV with a different engine, tranny, car, etc., but the idea's the same. Your pulse:glide ratio determines your mpg. The more you glide in relation to running the engine, the better your mpg.
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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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