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Old 01-22-2012, 12:58 PM
Quacker Quacker is offline
Officially Welcomed to the 'Fest
Location: Colorado
 
Join Date: Feb 2011
Posts: 631
Mein Auto: 2012 535i xDrive
Quote:
Originally Posted by Kmdcolo View Post
Colorado only offers 85, 87, and 91. Ralph Schomp BMW said 87 works fine because of our elevation, but I only run 91.
Low octane works in a normally aspirated motor at higher altitudes, but not in a turbocharged motor. I'm sure that the car can and will compensate for low octane in that it will not knock, but your performance will suffer.
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2012 535ix Space Gray, Cinnamon, SAT, Premium, Prem sound, Cold W., Sunshades, Gloss Black Grille, Gloss Black Side Markers, RE970AS 245/45/19 non-run flats that run very smooth + quiet and also correct the otherwise optimistic speedo

Last edited by Quacker; 01-22-2012 at 01:03 PM.
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