| Head gasket going or not?
My Mercedes Sprinter 1995 208D (no turbo) van collects a small amount of engine oil in the radiator expansion tank. This oil is always floating on top, and the coolant remains clear.
The oil on the dip stick, and the oil and workings inside the cylinder head are all clear, no gunge or white stuff.
Is this the early signs of the head gasket going, or something else, like a pipe leaking oil into the coolant system somewhere?
Any advice greatly received.
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