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Old April 3rd, 2012, 13:26   #63
tditom
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Join Date: Sep 2001
Location: san antonio & austin
Fuel Economy: Golf: 54/48/43.5 B4 Passat: 52/48.5/45 B5.5 Passat: 30 mpg mixed
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Quote:
Originally Posted by oilhammer View Post
...

Tires: ...Going from the proper 91 load to an 89 (an all too common mistake) can take a 1 MPG hit all by itself over the same model tire. ...
While I agree that you should always use tires of the correct load rating, I don't understand how load rating impacts mpg. Can you elaborate? thanks.
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autos: 19 Subaru Forester, 14 BMW 535d xDrive
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