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Old 08-27-2010, 09:21 AM   #3 (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
I had a search through the forums tonight, looks like MPG data for this mod is hard to find. I think its related to the issue that when changing tire pressure the radius of the tire changes so the standard way of testing improvement (via a scangauge MPG read out) gives bad results.
There are several coast down tests done by different people which involve measuring distance covered when starting at a particular location on a hill incline that goes to a flat road section. I have put one of these in the summary table until anyone can provide an MPG improvement
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