Mud-like substance in the radiator cap

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vjregal770, Apr 30, 6:25am
Cheers for the info, folks. I've flushed out/replaced the coolant and just put in a bottle of Wynn's stop leak in with the oil. See what happens.

next-to-normal, Apr 30, 6:36am
try some chemweld too

phillip.weston, Apr 30, 6:38am
bottle of stop leak wont work. You would still have oil at 50+psi trying to escape beyond a hairline crack in the head gasket into the coolant.