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Engine burning too much oil

Tiny
ARCH MIKE
  • MEMBER
  • 2003 CADILLAC SEVILLE
  • 4.6L
  • V8
  • AUTOMATIC
  • 67,873 MILES
I have a problem with my car burning too much oil. I just recently gave it an oil change, changed all the coils and put new spark plugs. I passed a smog and it runs pretty decent. But it still burning too much oil. I did this tune up about a week and a half ago if that. And already I had to add another 2 quarts. What could be the reason? Please help.
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Wednesday, April 29th, 2020 AT 2:24 AM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

Do you have any external leaks? Is there any puddles on the ground?

If there is, you need to have the leaks identified and repaired.

https://www.2carpros.com/articles/engine-is-leaking-oil

If there are no leaks, then most likely you are burning the oil in the cylinders from worn piston rings.

https://www.2carpros.com/articles/replace-engine-piston-rings

Roy
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Wednesday, April 29th, 2020 AT 5:05 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
Do you have blue smoke coming from the exhaust? You may have a broken piston ring This guide can help confirm.

https://www.2carpros.com/articles/blue-smoke-from-engines-exhaust

Please let us know what you find.

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Wednesday, April 29th, 2020 AT 10:42 AM

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