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Oil consumption increased

Tiny
FARHAN2149
  • MEMBER
  • 2006 NISSAN MAXIMA
  • 3.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
My car is losing engine oil with no sign of leak anywhere and even no sign of smoke. Engine runs very smooth. I put 5w 30 for 10,000 kms and my car has not crossed 4,000 kms. I can see on dipstick I lose around two liters of oil. What is causing my car to have too much oil consumption? And there is no warning light showing on dash.
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Monday, July 9th, 2018 AT 2:20 PM

6 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

From the sounds of your issue, if you have no external leaks then it is most likely worn piston rings not controlling oil consumption.

Roy
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Monday, July 9th, 2018 AT 2:56 PM
Tiny
FARHAN2149
  • MEMBER
  • 32 POSTS
As I said sir there is no white smoke coming out from exhaust no oil thing in exhaust. But any how is there anyway to control oil consumption rather then doing expensive repair and what is PCV valve if it is faulty will my car also consume too much oil?
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Monday, July 9th, 2018 AT 6:46 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
It does not have to smoke to use oil. The oil can be consumed by the catalytic converter and not produce any smoke.

If the PCV was bad, you would have a code set for lean mixture.

The only other alternative is to have the rings replaced or just add oil as needed.

Roy
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Tuesday, July 10th, 2018 AT 3:54 AM
Tiny
FARHAN2149
  • MEMBER
  • 32 POSTS
Sir, I do have mass air flow code even after replacing it with new one the code return back. Does this have to do anything with PCV to consume oil?
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Tuesday, July 10th, 2018 AT 4:03 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
No, it does not. That has to with fuel control only.

Roy
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Tuesday, July 10th, 2018 AT 4:23 AM
Tiny
FARHAN2149
  • MEMBER
  • 32 POSTS
  • 2006 NISSAN MAXIMA
  • 3.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
My car does not smoke running smooth it is very hot now here 43c and the car oil lose is a lot. I did notice before oil change there is a leak between engine and transmission where they join together I added 5 w 30 oil for 10,000km and now my car is driven 3,000km and 2L oil is gone so my question is can engine oil can be leak through engine and transmission where they join together? I check myself every where there is no smoke and no other place leaking.
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Wednesday, July 11th, 2018 AT 9:40 AM (Merged)

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