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      12-13-2018, 11:32 AM   #6
Z K
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Drives: E90 M3, G20 M340i
Join Date: Jul 2011
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Quote:
Originally Posted by kyrix1st View Post
Yeah.. it did leak before but went away after I momentarily changed to OEM 10w-60 after RB job. Guess caps are more prone to seeping with ester oils.
If it is really gushing, you may want to check under the cap and make sure the rubber gasket is not twisted up and not sealing correctly. I had that happen with my oil cap too. I lost 1/2 a liter of oil in 500 miles.

Oil seeping is normal though with older oil caps. Just replace the cap and it'll be fine.
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