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Old 06-15-2009, 09:42 PM   #6
Ubergeist
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Join Date: Jan 2007
Location: Chicago
Posts: 188
Drives: w208 CLK55
Quote:
Originally Posted by fourml8r View Post
10W-30 is perfectly fine. both that oil and the "Recommended" 0W-40 will meet the same classifications. The difference is the "Weight" of the oil which in laymans term is its' abaility to flow in colder weather (Hence the -20 statement). Caveat is that you are using the recommended full synthetic.

As far as filters, you're wasting money by getting it at the dealer. You can find them online easily for much lower prices than the dealer. Check for Mann or Mahle filters, they are OEM suppliers to MB. Use the better "Fleece" filters rather than the cheaper paper filters.

For future info., mixing grades of oil is not a problem, you'll just end up with something inbetween the 2 weights of oil. And if you're only adding 1 qt. of a different weight to 7 qts. in the car already, the actual difference is low (Figure ~10% change). That will not impact you're car at all.
I only paid15.00 for the MB filter. FIgured this wasn't that bad.

Thanks for the advice though. Didn't want to chance it. So I blew 50 bucks in oil. At least I have peace of mind now. lol.
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