sealing up the oil pan and tray

[AmadeusCharger500]

Can anyone tell me the difference in products that are used on the gaskets?
I have 2 types of gasket stuff that I use. Some apears to work better with trans fluid, some with exhaust system and so far none seems to work great against oil.
I have been using the permatex ultra copper (valve covers and oil pan), and ultra grey (trans). The trans is leak free. everyhing else has some leaking going on.
I am in the process of putting a new oil pan on a 440 with windage tray, 2 gaskets, and would like to get the right stuff this time.
Does something like red silicon work better?

[Chryco Psycho]

I use ultra Black or ultra copper both have superior oil resistance
make sure you pan is flat & tap the bolt holes flat too on the edge of a vice to help it seal up  let it sit an hour or so before getting soaked with oil

[TylerCharger69]

I use straight black silicone  (not ultra black)  on pretty much everything  except for freeze plugs which some people don't practice this, but I use Permatex B1...(I think that's it.....the brown stuff...number may be wrong....the white tube stuff anyway)  I use no sealants on exhaust applications  unless it's a temporary fix...then I use the high heat red stuff.   But generally....The straight Black silicone has never done me wrong!!!    Make sure your surfaces are very clean too....For example...the oil pan.....make sure all old gasket material is removed and wipe down the mating surfaces with carb cleaner or lacquer thinner....any oily residuals  will not allow a positive seal and will leak!!!  Cleanliness  makes a world of difference!!!

[firefighter3931]

I use ultra Black or ultra copper both have superior oil resistance
make sure you pan is flat & tap the bolt holes flat too on the edge of a vice to help it seal up  let it sit an hour or so before getting soaked with oil

ultra copper all the way !


Ron