Oil leaking bottom of engine

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CB900F2

184 posts · Joined 2006

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#2 · Sep 3, 2017

I am thinking it might be your rear main seal

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AlexD Discussion starter

12 posts · Joined 2017

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#3 · Sep 3, 2017

I'm already thinking may be it's not engine oil but transmission fluid. I really have no idea where is border between engine and transmission

 

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AlexD Discussion starter

12 posts · Joined 2017

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#4 · Sep 3, 2017

Oh and I clean everything and check again it seam it's leaking through big parts connection

 

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AlexD Discussion starter

12 posts · Joined 2017

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#5 · Sep 3, 2017

It seems I'm right it's a transmission fluid leaking through two big parts connection - how should I fix it?
thanks

 

amm888

329 posts · Joined 2017

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#6 · Sep 3, 2017

I've got oil on my transmission, and it's definitely oil. Have you checked the leaky fluid on a white paper towel or piece of paper? If it is pinkish/redish, than it's tranny fluid, but if it's black/brown than it's engine oil (or seriously nasty tranny fluid).

From my little research for my oil leak, I think it may be either the rear seal, or simply leftover oil from a recent oil change and/or from leaky valve covers which were redone before I bought the van.

 

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marvinstockman

3,573 posts · Joined 2015

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#7 · Sep 3, 2017

Monitor your trans fluid level, and if it doesn't change, there's nothing to fix.

 

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lucio2016

191 posts · Joined 2016

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#8 · Sep 3, 2017

clean it off, and recheck. if it become oily again, check your fluid level and compare

 

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gbrickey

33 posts · Joined 2016

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#9 · Sep 9, 2017

I had a leak in the same area on my 2006 EX-L that had 92k miles at the time. It was a bad leak dropping oil on the garage floor that started after my wife took the car to a 5-minute oil change place that put in a lower (thinner) grade of oil. I immediately changed the oil to the proper grade of high-mileage oil and also added a qt. of Bars rear main seal repair.

This slowed the leak, but it continued to drip a few drops of oil on the floor for about the next 6,000 miles, but it has now stopped altogether. I now use a synthetic blend high mileage oil and add a quart of Bars and it's all dry now.