qwerty4real Posted September 3, 2021 Report Share Posted September 3, 2021 My engine has milky residue on the oil cap, I cleaned it off 2 or 3 weeks ago and its back. Anyone know what could be causing this. The car is not showing any tell tale signs of headgasket problems and its only got 46224 miles on the clock. The Engine code is AER if that makes any difference. Thanks Quote Link to comment Share on other sites More sharing options...
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