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Old 07-05-2014, 09:21 AM   #7
John Firestone
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Quote:
Originally Posted by 2MCHPWR View Post
... is it required to use super 93 unleaded or can i use 87 regular?
You can use 87 if you don't mind a decrease in power and fuel economy of about 3% – the figure BMW gave in their earlier brochures for using RON 91 instead of 95. Personally, I give the engine 0W synthetic oil and super unleaded. I am not sure I could find RON 91 these days.

Last edited by John Firestone; 07-05-2014 at 09:41 AM.
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