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What is the optimal fuel for the BMW M4 engine?

I have been reading about the BMW M4 and I can't seem to find what the ideal fuel is for this car. I want to make sure I am using the right type of fuel to get the best performance and longevity out of my engine. Can someone please clarify?

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L

The BMW M4 is designed to run on premium fuel. It is recommended to use fuel with an octane rating of 91 or higher for optimal performance. You may be able to use lower octane fuel, but it may affect the engine's performance and potentially cause long-term damage.

E

I have been using 87 octane fuel in my BMW M4 for the past year and haven't had any issues. Just make sure to monitor your engine's performance and if you notice any knocking or reduced power, switch to a higher octane fuel.

D

I spoke to a BMW mechanic and they recommend using premium fuel for the M4. It may be more expensive, but it will provide the best performance and ensure the longevity of your engine.

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