2003 Chevy S-10 mixed fluid

AMERICANIDIOT

MEMBER
2003 CHEVROLET S-10

Engine Mechanical problem
2003 Chevy S-10 6 cyl Two Wheel Drive Automatic

Accidentally put transmission fluid in the engine oil. Drained oil and changed filter, is there any reason to change the gaskets?

Sunday, December 21st, 2008 AT 11:27 AM

4 Replies

MIKE H R

MECHANIC
3,094 POSTS

What gaskets are you talking about?

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Saturday, December 27th, 2008 AT 7:33 PM

JMICHAEL8888

MECHANIC
45 POSTS

Just so happen I was at auto zone the other day, and a guy accidently bought trans fluid and put it in his engine. The guy at the store, whom I know has worked there for a while and always gives good advice, told me that he used to use tranny fluid to clean his internal engine parts on his engines but he legally couldnt tell him that. So I told him on the way out to drain it ( to be safe) and it would be fine.

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Saturday, December 27th, 2008 AT 9:31 PM

AMERICANIDIOT

MEMBER
2 POSTS

I was referring to any gaskets that may come in contact with engine oil possibly absorbing trans fluid and swelling since it is a thinner liquid.
We flushed out the engine with an engine flush and changed the oil filter and refilled with fresh oil. There seems to be no apparent damage at this time. Thanks for your replies.

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Sunday, December 28th, 2008 AT 5:04 AM

MIKE H R

MECHANIC
3,094 POSTS

Some people do put a little in the oil if they have leaks. With you changing it and you don't see any leaks you should be all right. You did not say how long and how many miles was driven before you found out. But with no appatent leaks you should be ok. Let us know if anything should come up

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Monday, December 29th, 2008 AT 6:03 PM