Optimal speed for the best MPG??? - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 01-24-2004, 01:37 PM   #31
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You don't use a "set amount" of gas at any RPM.It takes more gas to keep 1600 RPM @ 70 MPH then it does @ 30 MPH. Aerodynamics in our cars aren't too bad, we're very low, our wipers are hidden (some of us :P ) etc
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Old 01-25-2004, 02:16 AM   #32
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Today I put the CC on and hit the decel button to see how low I could go. I dont have a DIC, but I think 50 is about right, lower than that and the RPMs dont really go down a whole lot.
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Old 01-26-2004, 09:48 PM   #33
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Sometimes my torque converter locks up @ 45mph and the rpms go so low that the car starts jerking, it doesn't like to disengage once it has engaged either.
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