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Old 09-05-2010, 12:13 PM   #13 (permalink)
saand
Wiki Writer
 
Join Date: Jul 2010
Location: Melbourne, Australia
Posts: 236

bugler - '91 Mazda 626
90 day: 35.89 mpg (US)
Thanks: 15
Thanked 25 Times in 22 Posts
For those interested 2 other people have already done this modification and done ABA tests, the data is in 2 different threads but a consolidated list is in the wiki here

Smooth wheel covers - EcoModder

The average is 3.88 % MPG improvement, definately worth doing for a nice quick modification.
I have also seen people paint their covers so it appears like a normal hub cap.

Last edited by saand; 09-05-2010 at 12:18 PM.. Reason: stuffed up numbers
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