Can I use regular gas once in a while

Asked by Mar 09, 2017 at 08:57 PM about the 2008 BMW 5 Series 535i Sedan RWD

Question type: General

Is it ok to use regular gas a time or two

5 Answers

115,475

As long as your car does not ping it won't hurt anything. You will probably just lose a little power.

1 people found this helpful.
122,695

Not really, 91 or higher should be used, its a higher performance car...

24,145

If your wanting to save on gas bill, in the long run the best thing to do is buy a cheap beater car or truck to drive when you want good gas mileage or its raining or your going to work ect. Keep your sports car nice.

2 people found this helpful.
2,045

If you want to damage your engine, sure.

299,275

You won't damage the engine. You can use 87 octane as F_O_R suggested. You will just get lower MPG and the knock sensor will take care of the rest. 91 is recommended. So you can put in 93 one week, refill with 89 the next, and back to 93. So essentially you are mixing. Is 91 or 92 octane sold by you? Calculate the cost if your concerned about saving a few dollars.

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