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Jay, Nissan Technician
Category: Nissan
Satisfied Customers: 20096
Experience:  20+yrs experience with Nissan & Infiniti Trained & Certified.Currently still working for Dealer
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2006 infiniti m35x leaking oil drivers side towards front

Customer Question

Customer: ***** *****. 2006 infiniti m35x leaking oil drivers side towards front maybe near dipstick location. Can not locate and it is a fair amount of oil especially when I put engine under load (15 minutes highway) then check it again.
JA: Thanks. Can you give me any more details about your issue?
Customer: Had oil change three days ago. But no leaks on filter or plug. Hits manifold heat sheild and smokes. Runs dowm drivers side exhaust. Pretty soaked under carraige driver side only. 1/2 quart loss over 70 miles.
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Submitted: 1 year ago.
Category: Nissan
Expert:  Jay replied 1 year ago.

Hello my name is ***** ***** thank you for your question.

There is a oil cooler o-ring behind the oil filter. This o-ring through time can leak and that would be up front like you are explaining.

This o-ring is around 22 bucks, and is normally done with 1 hour labor and a oil change.

Other than that, I do know this also, the dipstick goes into the cylinder head. If the rubber seal on the dipstick has any parts missing it can leak oil out of the dipstick tube which is really the cylinder head.

The last is the valve cover. These 3 things are the only things I would say are the most common for oil leaks.

Do you have any more questions on this?