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Mazda Millenia 2002 with 90,000 miles.

Tiny
STANLEYONE
  • MEMBER
  • 2002 MAZDA MILLENIA
  • 90,000 MILES
I have an oil leak at valve covers after changing to Mobile 1 oil. I had the valve covers changed still leads a little but not as bad. Car did not leak before changing to mobile 1. Is this common and should I change back to regular oil?
Monday, April 9th, 2012 AT 12:06 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
If the leak is from the valve cover, I don't think it is due to the oil you use. When replacing the valve cover gasket, if non OEM gaskets are used, they might leak. The other thing is proper torquing. Improper torquing can result in the valve cover cracking and leaking. Recheck the work done.
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Monday, April 9th, 2012 AT 12:44 PM

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