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Old 01-22-2012, 05:39 PM
nhs156 nhs156 is offline
Officially Welcomed to the 'Fest
Location: Atlanta, GA
Join Date: Apr 2007
Posts: 228
Mein Auto: '10 M5
Originally Posted by mrich1353 View Post
I have one local station with NO ETHANOL 91; if I can't there. by 2nd choice is Shell 93 Octane (has ethanol in my area). Noticed a huge difference in performance with the non-ethanol on my 2010 535I, not quite as much on on the 2011 535I.
Ethanol is a HUGE performance killer. You're lucky to find ethanol-free fuel.
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