I asked the local speed shop owner/engineer this question...he said that I'd get better mpgs by depressing my clutch pedal when I coast since that prevents more transmission parts from spinning!? On my Geo I notice that the engine rpm raises nearly by 100 rpm when I coast in gear with the clutch depressed compared to neutral!
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42 time NHRA/IHRA drag race champ
05 SRT4-12.17@117 mph on DOTs-31.0 mpg-SOLD
96 Geo Metro-3 banger-60.1 mpg-SOLD
95 BMW M3-13.41 @ 106 mph-31mpg-SOLD
77 Chevy Monza with 350/350-FOR SALE
84 Horizon-1880 lbs-29 mpg
95 Neon-43 mpg
99 Z28-10.80 @ 127 mph-27.1mpg
2011 Prius-62.1 wife's
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