can you put regular unleaded fuel in them?

Asked by Apr 16, 2010 at 11:43 AM about the 1990 Mercedes-Benz 300-Class 4 Dr 300E Sedan

Question type: General

I was just wondering if it's ok to put regular unleaded fuel in them? It's says premium fuel only on the gauges.  

3 Answers

175

noooooo. all gasoline mercedes require premium fuel. regular fuel will damage it.

3 people found this helpful.
8,205

no. pre-detonation will occur throwing the firing of each cylinder off. you will lose significant power and engine efficiency. the loss of efficiency will cost you more in gas than putting the right grade of fuel in.

2 people found this helpful.
125

No!

1 people found this helpful.

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