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Old 04-11-2011, 03:28 PM   #8 (permalink)
some_other_dave
Master EcoModder
 
Join Date: Jul 2008
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As for your question about speed:

The best cruising speed is "as slow as you can stand in top gear". So if you're comfortable driving 45 MPH on the interstate, you'll see better economy than at 65 MPH.

If you have an automatic trans, modify the above to "as slow as you can stand in top gear with the torque converter locked up".

-soD
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