Originally Posted by JoePoonani

That sounds like a rear main seal leak. Unless it's pissing out oil when the engine is running then you shouldn't be too worried if you catch it early enough. They basically have to dismount the tranny from the engine and replace that 13 dollar seal. That could easily cost you 500 bucks for labor. If you could, just replace your whole engine with a D16Z6 for the same, if not less price.