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Premium fuel for Mercedes-Benz

Asked by Paul Bowker

We own two Mercedes-Benzes, a 1999 E280 and a 2008 C180 Kompressor. We were told by the dealers we must use premium fuel because of the injectors, but with the price of premium now $1.63 or so I'm wondering if the cars can run on normal unleaded?

Answered by CarsGuide

11 Aug 2011 Graham Smith

The Mercedes recommended fuel for the E280 is 91-octane regular unleaded, while the recommended fuel for the C180 Kompressor is 95- octane premium. While you can safely run the E280 on regular unleaded, and I suspect you could run the Kompressor on 91-ocatane, you will get better performance and economy by running them on the higher-octane fuel. Mercedes-Benz also approves the use of E10 ethanol blend fuel in both of your models, which might help you save a few pennies.

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