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      11-03-2012, 08:47 PM   #42
Drives: e92 M3
Join Date: Oct 2012
Location: Here and there

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Originally Posted by Majdnoon View Post
This. I also fill up almost exclusively on Costco/Sam's Club gas so I wanna know, is it doing harm or good for the engine? Anyone wanna help us out with that?
Not going to do harm per se..Its all about the additives, some gas brands have better additive packages than others..I would stick with any top tier gas.
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