Oil On My Rear Bumper??
Thread Starter
Junior Member
Joined: Feb 2013
Posts: 56
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From: Idaho
Car: '82 Z28
Engine: 350
Transmission: TH-350
Axle/Gears: Posi
Oil On My Rear Bumper??
A while ago I realized my car is basically drinking oil. A lot. A couple weeks after my oil change I was low. Then I looked at my rear bumper and saw everything coated in a noticeable layer of oil. I do mean everything- Bumper, licence plate, tail lights... I don't know what it could be other than a blown rear main. Anyone have any insight?
Thread Starter
Junior Member
Joined: Feb 2013
Posts: 56
Likes: 0
From: Idaho
Car: '82 Z28
Engine: 350
Transmission: TH-350
Axle/Gears: Posi
Re: Oil On My Rear Bumper??
That's what I would think if it didnt come back when I wiped it off... And I really can't sell or trade it with that large of a leak.
Joined: Sep 2005
Posts: 27,918
Likes: 2,448
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Oil On My Rear Bumper??
Yup, pretty typical. (although actually, if you took the bumper off, you'd probably find it on the inside as well; since everything that is in the air up under the car, including leaked oil, passes that way as the car goes by)
Most likely not the rear seal.
A better idea, before just jumping to the most expensive and painful conclusion possible, is to LOOK AT IT and see where it's coming from.
Not a lot of rocket science, really.
If it's REALLY all caked up with the funk up under there, take it to the quarter car wash first, and STERILIZE it; then it'll be a piece o cake to see where new oil is.
Most likely not the rear seal.
A better idea, before just jumping to the most expensive and painful conclusion possible, is to LOOK AT IT and see where it's coming from.
Not a lot of rocket science, really.
If it's REALLY all caked up with the funk up under there, take it to the quarter car wash first, and STERILIZE it; then it'll be a piece o cake to see where new oil is.
Senior Member
Joined: Jun 2008
Posts: 660
Likes: 1
From: Corning NY
Car: 86' IROC
Engine: 388
Transmission: Built 700r4
Axle/Gears: 3.08 non-posi
Re: Oil On My Rear Bumper??
I had the same problem and it ended up being my valve seals. Mine wasn't going through it as fast as you but I had to add oil every once in a while.
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Joined: Sep 2007
Posts: 1,028
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From: St.cloud fl.
Car: 90RS Conv.
Engine: 383 w/ small shot
Transmission: th400
Axle/Gears: moser 9in
Re: Oil On My Rear Bumper??
could be as simple as a valve cover gasket that is bad. Clean the engine.
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