E10 in 1991 BMW

[Bluestream]

I have my BMW on the road after 2 years in storage, and just filled up with my first tank of E10 regular 87.

My Owners manual only says "do not use fuel with excessive amounts of alcohol"

Is E10 safe in a 91, and if not what kind of issues would it cause?

 

[RooflessVW]

Shouldn't bother it at all.

 

[fdcg27]

Well, it causes no problems in my '95 four cylinder FWIW.

 

[VeryNoisyPoet]

Generally ethanol content of less than 10% won't cause issues. Higher concentrations are where the problems arise. Ideally use most of the tank and add fuel stabilizer before storing it again for significant amounts of time, since ethanol blends can degrade, form deposits, and absorb moisture over time.

 

[jhellwig]

If it wasn’t run with ethanol in it before it might plug up the fuel filter cleaning the junk out of the system. I have had that happen a couple of times.

 

[Bluestream]

Originally Posted By: VeryNoisyPoet
Generally ethanol content of less than 10% won't cause issues. Higher concentrations are where the problems arise. Ideally use most of the tank and add fuel stabilizer before storing it again for significant amounts of time, since ethanol blends can degrade, form deposits, and absorb moisture over time.


I have been storing it with premium ethanol free, and will continue that

 

[JamesBond]

The fuel in IL has been e10 as long as I can remember. My family has used it in several e28's and e30's with no real issues. You're due for fuel hoses anyway.

 

[Nick1994]

It's all we've got here, E10. I run the 1970 VW Beetle on it too, it runs fine.

 

[JHZR2]

Mine always ran perfectly with it.

 

[red7404]

just add Marvel mystery Oil in it. 4 oz for 10 gal.

 

[tig1]

E10 is not excessive. I used E10 in the 70s while living in Maine in my 77 Chevy V8.