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      10-11-2012, 09:05 AM   #6
germ
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Drives: 135i convertible
Join Date: Aug 2010
Location: CA

Posts: 87
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Quote:
Originally Posted by Walt White Coupe View Post
First, I am getting much better mileage!

Simply put, No way!
Agreed. Lots of misinformation. There is no difference in energy content between different octane grades, so I don't believe there will be differences in mileage.
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