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2003 Mercedes-Benz S430 Question: 2003 S430 base that sounds like a diesel.

 

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cooolbill, Glenview, IL, September 19, 2012, 06:46
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The car performs great otherwise. The noise seemed to start when I put some regular gas in it one time even though I have used ultra premium ever since. Am I in big trouble?

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    Olympia Auto (38 Answers) , Chicago, IL - (773) 295-4911
    Olympia Auto September 19, 2012, 12:55
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     Technician

    What kind of oil do you use? When was the last oil change?

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    cooolbill, September 19, 2012, 13:24
     Rookie

    Thanks for your reply. I do not know what kind of oil is in there or how old it is but it looks dark purple and syntietic. I bought the car 4000 miles ago (112k now). Because I did not know the answer to that question I have scheduled an oil change at a Mercedes shop for tomorrow.

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    Olympia Auto, September 19, 2012, 13:38
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     Technician

    You're welcome.
    You have to use the right kind of oil in those vehicles. They're very sensitive. I have the same car. You have to baby them.

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