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Old 02-08-2006, 11:30 AM   #9
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Re: Gas Mileage myths or facts?

Personally, I don't think it is a myth concerning the benefits of overdrive or even using the cruise control. Of course, it depends on the driving conditions and terrain. On a trip/highway my gas mileage improves 5 - 6 mpg. However, in city it is a different story. I'd rather be taching 2000 rpms cruising at 75 mph than 3,000 rpms. Torque convertor clutch (TCC) lockup helps out too. On use of A/C I get only a 1 mpg gallon difference in gas mileage with the AC off.

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