Happy New Year

Yesterday bought a 2007 C230 Sport I Just wondering what fuel is best to run. Considering power and MPG. Now its on premium.

Thanks

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1995 E320
1998 E320
1999 E320 4Matic
2000 E320 4Matic
2000 ML320
2007 C230 Sport
2003 Cadillac CTS

What does your owners' manual say? If the car isn't designed for E85 you can't use it.

In any event, premium would give you better performance and economy. E85 does not have as much energy per liter.

Good luck and happy new year.

Thanks for reply
No owners manual in glove box, Dealer will order one. I read it on the gas flap saying Premium or E85 only.I changed the oil and filter when I got home but hove no idea how to acces the service indicator until I get the Manual. Dealer said it was changed but I don't trust them since it was a Chevy Dealer cheap oil.

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1995 E320
1998 E320
1999 E320 4Matic
2000 E320 4Matic
2000 ML320
2007 C230 Sport
2003 Cadillac CTS

You might check the MBUSA website, they have some of the newer model manuals in pdf form that you can review or download.

New car, new year. Congrats and good luck.

E85 will usually produce more horsepower but at a high consumption rate if the vehicle is setup for it. Its about 110 octane.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car

Premium. Mileage is better, it puts less wear on your engine, and it doesn't attract water like ethanol. There are tons of problems with ethanol. Just google "ethanol fuel problems".