Can you put regular gas in a 2007 BMW X5 3.0 or must have premium?
You can use regular or 87 octane. Your BMW is set up to use 91 Octane or more, you will see better performance and fuel economy with premium.
Don't skimp on the gas for your Beemer. If you want to run regular buy a Camry.
If it says premium then run premium.
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