Leaking oil, possible rear main seal?
After 100,000 miles, I'm finally starting to leak motor oil. I wouldn't really care if it wasn't for the smell of it dripping on the exhaust and making a mess of my parking area. So I kinda want to do something to at least slow it down. I use full synthetic too which I'm sure isn't helping this situation.
All the oil is astern of the engine, running down the bottom of the transmision. It is definately motor oil, no trans fluid or anything. There is no oil I can see up high on the engine block or anywhere else. This leads me to believe it is probably the rear main seal (once again, FML). Are there any other typical culprits, preferably ones easy for me to check and eliminate as a possibility? I seem to remember someone saying something about the PCV valve being stuck and creating crank case pressure that is blowing oil out.
If it is the rear main, are any of those crankcase leak stopping additives decent and not prone to screwing up other parts of the engine? I run full synthetic if it makes a difference. And/or, is there an oil I can safely run in this engine that will be less prone to leaking as bad as the normal full synthetic I use now?
Before anyone suggests it, no I am not going to drop the transmision and fix it right now. I don't have the time, money, or facilities to do that. My old '84 Ranger leaked so bad, I had to run 20W-50 year round to keep it from falling out the bottom as I poured it in the top. If I lived with that, I can live with this, I just want to slow it down.
Last edited by FireRanger; 08-12-2009 at 03:46 PM.