I keep getting conflicting advice -- and I expect more conflicts here. When installing the manifold gaskets on my inline 6 do I use gasket sealer or not? I bought some of the copper stuff. Some people are telling me the Jeep gaskets are heat sensitive and have their own sealer. Others are telling me they always use sealer anyway.

Never used sealer on my 232 I-6 when I installed my headers......still holding strong 8 years later.