tranny slipping when cold

[MarquisMalarky]

I know, but I can't justify putting new valve seals in her $800 car.

[Blaze86Vic]

I know, but I can't justify putting new valve seals in her $800 car.

I know what your saying, and if it is bad valve guides then that will help stop the smoke. But if it's a clogged PCV screen then you are doing more harm than good. If you know what the problem is for sure then additives are good for limping some extra miles.