Quote:
Originally Posted by RedDevil
Wyatt did mention it in his second post:
If the rims were an inch wider, so were the tires. That does have an impact of economy, but not enough to be solely responsible for the difference in FE. IMHO.
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Oh, didn't noticed. I was looking for a 205/50/17 or something on that format. Sorry
Just a thought, I'm no expert, but if the rims are an inch wider, they will be heavier plus the added weight of a wider tire, they will have an impact on frontal area and a bigger contact patch, considering there are 4 wheels. Maybe all those parameters are negligible, but in my car, changing from 205 to 225, which is less than an inch, is very noticeable, even if I just change the front tires.