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Old 10-30-2008, 11:59 AM   #49 (permalink)
tasdrouille
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Quote:
Originally Posted by 07b2300 View Post
So I'm wondering how much tire pressures are helping anyone else because if the effect is negligable I'm going to put it back to help keep my coffee off my lap!
To answer the OP's question, in “The Effects of Tire Inflation Pressure on Passenger Car Fuel Consumption”, SAE paper 810069, the authors argue that the effect of inflation pressure on passenger car tires will affect overall fuel consumption by 0.33 percent/psi.
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