I have a small oil leak somewhere that is resulting in a faint burnt-oil smell whenever the HVAC fan is on. I don't see any oil, I'm not using any oil, so this is a very small leak that is just an annoyance...I'm thinking a gasket.
Has anyone used a stop-leak sealer like CD2? Do they work? I was looking at CD2 because it doesn't seem to be as thick as some of the other products.