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Old 03-04-2001, 08:41 PM
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I have had no trouble switching to Mobil 1 15-50 from the conventional oil that was used by the previous owner. I do not notice any lifter noise upon startup after the car sits a week or two... I have not seen any increase in oil leaks either.... I made the switch at 47,000 miles - now it has 53,XXX.

92 500E
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