1983 380 SL
The problem is not to smear or not to smear... the problem I had was how to mount it. The new ICM is a different size than to old one and I couldn't find any way to mount it so the heat sink lay flat on the mounting area. I mounted it the best I could and decided I would make a heat sink from extruded aluminum some day.. but I never did.ICM has arrived, a HUCO. It came with a very small tube of a white material that I am assuming is a dielectric grease for the contacts but before I start slathering an unknown material on this new part I thought I would ask to be certain.