Auto to Manua conversion *Flame suit on*

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Originally Posted by yimmy149

I know you said it's blown, but it might be worth replacing the oil/water heat exchanger, as that could be the place the mixing is taking place on a car that old.

Or simply some blown internal freeze plugs. A guy in Texas recently repaired a motor (oil/coolant mix) with this simple failure. The car is in the great white north after all.