mswan69

I know you are suppose to run premium gas in the GL 450, but was wondering if it is ok to use 10%ethanol from time to time or regular gas from time to time or will it cause damage?

AsianML

NO. The only E85 capable MBs are some of the C-Classes.

amdeutsch

Junior, you really need to learn to read properly and not just what you think should be there.

lkchris

It says you can in your owners manual.

AsianML

Squinty eyes have a hard time reading posts with words that aren't separated!

thebishman

Premium with 10% ethanol is going to be about the same exact price as 'normal' premium, hence I would avoid it unless you have to use it because you live in an area that only has a mix of 90% petrol/10% ethanol due to emissions concerns, etc.

If you are looking to 'save' a little money, using mid-grade fuel, (89 octane US), will have no ill effects, and I strongly doubt if you'll notice any decrease in performance and/or mileage.

I say this since on a couple of occasions we put 89 octane in my wife's Range Rover Sport S/C and it ran perfectly. In fact I could detect no difference in the way it 'ran' versus premium fuel, and remember it has a forced induction engine.

Bish

amdeutsch

They wouldn't be squinty if you came out of that dark hole once in a while to see sunlight.