I know my Aveo has a leak. I think it's from the engine/transmission seal. Anyways I know it leaks slow but I'm waiting for my clutch to go out so I can just replace the seal. My car was running a little low on tranny oil so it was slipping. Today I bought 2 quarts of redline mt-90 I put them in, drove like 20miles back to home and now my car has alot of oil everywhere. My question is did I put more oil then it should have and the car has a valve to relive excess oil or does my car just have a major leak now lol. Cause stopped right now doesn't seem like its dropping like water. I know it still has some cause the gear aren't slipping yet lol