F10 m5 fuel

[Peter.f10m5]

My brother took out my car yesterday and filled it up with 87 should I drain it or let it rock?

[v3n0m]

Originally Posted by Peter.f10m5

My brother took out my car yesterday and filled it up with 87 should I drain it or let it rock?

Best if you can pump as much as you can out. If you can't do that put octane booster in before driving it. (NOTE: 30 point octane boost will bring 87 to 90). Also stay out of boost until you can refill, and do it often (like even if you have a quarter tank so you can dilute out the bad gas). Don't drive on 87.

[M5007]

I agree with v3n0m. This happened in my E39 M5 when a friend borrowed it. My check engine light came on the next day. That's when I found out.

Dilute by keeping the tank full and adding 91 to it. I doubt you will damage anything. But not the kind of fuel you want in your performance car.

Don't let him fill up again, take cash.

Good luck.

[secretariat]

Just curious, was it a mistake or did he do that intentionally? I'm sure he realized it is a performance car.

[jairomvp182]

just drive it without stepping on it

[Fast400]

Originally Posted by jairomvp182

just drive it without stepping on it

+1

There's no reason to drain. Go on a couple long drives

[jairomvp182]

once u drive a little add 93 to it and mix it up

[TheHouseWon]

Add a meth/water kit

[apexlocator]

Originally Posted by TheHouseWon

Add a meth/water kit

Right? Forget these other bandaid solutions, lol.

[TheHouseWon]

Originally Posted by apexlocator

Right? Forget these other bandaid solutions, lol.

I was hoping someone would catch that