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      10-26-2021, 01:16 AM   #1
2978386166
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m50i model oil grade

Sorry if this was asked but I didn't see one.

I am wondering the oil grade to put in my x6 m50i. I am from Canada and usually I put 91 as it is the high grade. I then discovered 94 as I never cared about other grades but since getting the x6m50i I started to care more about those things. I put in 91 into my car twice, then I switched to 94 now.

I am wondering if 94 is the best option, and would 91 not be recommended and would putting 91s into my car damage the engine?

Thank you!
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      10-26-2021, 09:46 AM   #2
todd92
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Oil grade? I think you mean gasoline octane rating. The engine is designed to run on 91. 91 will not hurt it.
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      10-26-2021, 12:10 PM   #3
2978386166
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Quote:
Originally Posted by todd92 View Post
Oil grade? I think you mean gasoline octane rating. The engine is designed to run on 91. 91 will not hurt it.
thank you for the answer, and the clarification!
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      10-26-2021, 07:22 PM   #4
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Quote:
Originally Posted by 2978386166 View Post
thank you for the answer, and the clarification!
91 Octane is fine that's what I normally use. We are fairly lucky here in Ontario and most of Canada since most of our gas is ethanol free, and that is a plus.
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      11-01-2021, 08:39 AM   #5
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Best octane is the lowest octane that won't detonate- both for the engine and your wallet.
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