Rear Main oil seal

GINGY012

MEMBER
1994 HONDA PRELUDE
4 CYL
AUTOMATIC
156,600 MILES

Hey I have a 1994 Honda prelude that has a rear main oil seal leak. I was wondering what would be the cost if I were to bring it to a mechanics? Please let me know. Also can having this leak effect the transmission? Thanks

Sunday, January 16th, 2011 AT 2:25 AM

7 Replies

KHLOW2008

MECHANIC
41,814 POSTS

Rear main seals leaks are from the engine and would not affect the transmission. Replacement of the seal requires the transmission to be removed and the book time is 7.1 to 7.4 hours if equipped with power steering.

Labor rates varies region to region so you need to check local prices.

The seal is listed at $16.83.

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Sunday, January 16th, 2011 AT 10:29 AM

GINGY012

MEMBER
86 POSTS

Alright Thanks and with this seal leaking am I doing something to the engine? And is using bars rear main seal oil leak additive would that harm the engine and seals? Thanks

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Sunday, January 16th, 2011 AT 12:06 PM

KHLOW2008

MECHANIC
41,814 POSTS

If the oil level is maintained, it would not affect the engine. Stop leaks additives etc might be a temporary reprieve and how long it last or wether it works or not would depend on the extent of the seal condition.

Personally I don't recommend any additives for engines.

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Sunday, January 16th, 2011 AT 12:55 PM

GINGY012

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86 POSTS

Thanks but would any additives harm the engine. Like: Lucas, Bars, would they harm an engine?

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Sunday, January 16th, 2011 AT 1:00 PM

KHLOW2008

MECHANIC
41,814 POSTS

Additives do not harm engines but after prolonged use, they can accumulate and when that occurs, they can cause restrictions lubricating lines. That would cause damage to the engine.