joe p:

Thanks for chiming in with your experience.

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I've seen 102's, 103's and a few 104's mix oil in the coolant
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Do these all need head gasket replacements?

Like, Jim, my 300E has a few oil droplets floating after a couple of weeks. The car does not suffer any ill-symptoms now. It idles smooth, does not lose any coolant, does not over-heat, and the engine has lots of silk-smooth power. Should I watch it or go ahead with the head gasket replacement. I just used another bottle of No Leak. If that stops it, I might have to use it in every oil change until it blows up.

Also does "head gasket set" include the timing cover gaskets? It has the head gasket, valve cover gasket, intake and exhaust manifold gaskets, right?

Thanks.