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      11-03-2012, 08:31 PM   #36
Enlisted Member

Drives: 2013 E92 M3
Join Date: May 2012
Location: Silicon Valley, CA

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85? Isn't regular here 87? I don't think I'd run 85 even in an engine that calls for 87 for fear of something going wrong. I know you can find 85 in some of the high-altitude states, but I've always avoided it (in cars that run regular fuel). I'd never put it in an engine calling for 91 at a minimum.

Originally Posted by M3forMe View Post
So let me ask this. Does anyone know want the extra additives are for California fuel? I know we have our own specific to the state?

Another question. What would/could happen if I ran 85 and not 91? Here is why I ask. My company pays for my gas but only 85. If I don't use 85 then I pay 100% on my own. I drive about 18k a year, you do the math. I am willing to pay my way but wanted to ask if it really would hurt the car.