"Chris" wrote: Re: Transmission Pan Gasket
In the past I used a thin layer of gasket sealer to hold the
gasket in place. My new filter kit has a rubber gasket
and the directions say to not use gasket sealer, but to
use a small amount of grease. Why not use sealer?
A gasket is made to seal irregularities in mating surfaces
from leakage. A compatible lubricant should be applied
to the gasket faces or its mating surfaces to allow it
to conform to the irregularities during tightening.
Added sealant compositions may:
1..) Retain the gasket in place during handling and installation.
2.) Be necessary if mating surfaces are badly damaged.
3.) Chemically attack the gasket material due to incompatibility.
4.) Harden and crack, allowing leakage to return.
5.) Be unnecessary but harmless.
It's up to you. Good luck.