Davemj
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I've got oil in my coolant. I have changed the oil cooler where else could it be leaking from??
Glup in my coolant!
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Henry_b
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Headgasket.
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It can take a long time for the oil in the cooling system to clear, it will have coated all internal surfaces. Eventually it will all migrate up to the header tank. After my cooler failed (defender) I dipped a rolled up paper towel into the header tank daily to mop up the oil on the surface, before starting the engine. Eventually all the contamination was cleared up but it took a while and a bit of patience.
Davemj
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I bought a secondhand oil cooler changed it over. Flushed the system and after a few days I noticed it again. Do you think a cylinder head gasket overhaul kit might do the job?
Bobdog
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How did you flush it? A garage did mine a few years ago and "flushed it" an inch of oil appeared afterwards in the header tank...
Crush up a dishwasher tablet into the header, run for a couple of days then flush, flush, flush... repeat if necessary...
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Not if there is still oil in the cooling system. Takes time (see my post above). Need to be sure it is not just contamination from the oil cooler first.
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How do you know it is a good one?
Davemj
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I don't
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