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      03-29-2012, 03:37 PM   #10
Freefreefive
Private First Class
 
Drives: 335i Coupe
Join Date: Feb 2012
Location: Melbourne

Posts: 129
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Personally I've put 98 Ron in all my bmws.

At the same time my parents have had their C180 kompressor for 10 years - they got it new and have always used 91 and after 220,000kms the car still runs strong -for a supercharged 4 cylinder....

So i dunno.....is 98 better for the engine? Maybe, maybe not to the extent they make it out. I drive my vehicle in a spirited fashion so always use the best of everything just in case....
Freefreefive is offline   Australia
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