Question about Vehicle Parts & Accessories
I would suggest you check your owners manual and see what fuel octane rating they recommend. You could also try the dealership. My own OPINION is that the better the octane the better the run. Other then that think in the final decision, it's up to you and your wallet.
Posted on Apr 18, 2014
If you are in the US, the highest octane you will find is either 91 or 92 which will be fine for your BMW. Unfortunately, BMW specifies premium fuel in all their vehicles and we have found it gives slightly better gas mileage, although not enough to offset the extra cost per gallon. You can experiment with a tank of premium and then fill with mid-grade (89) then premium and alternate back and forth and see if there is any difference. The anti-knock sensors will usually offset any lower octane issue and the one or two octane points should not be an issue. You can experiment as you wish. If you either hear knocking or have reduced performance, simply top off with premium and continue to use it.
Posted on Jun 01, 2014
91 should be fine thats what is recommended for my 00 BMW E46
Posted on May 03, 2014
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Posted on Jan 02, 2017
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