Question about 1993 Toyota Corolla

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Oil blow by from tail pipe . car uses oil IT doesn't leak, I HAVE BEEN USING SYNTHETIC OIL REGULARLY. OIL IS COMING OUT OF EXHAUST

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Well, a 1993 corolla that is still running in 2010 typically would have blow by if it has over 100,000 mi. on it, or so.

Even if you use synthetic oil, regularly, the rings could be worn out, or the cylinders are out of round or not as true as when new.

A lack of leakage at the seals may not indicate how worn out the rings are.


Posted on Jul 04, 2010

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Your oil rings are bad or valve guide seals are defecttive.

Posted on Jul 04, 2010

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