My indy worries me as well, but I went ahead and did the ofhg and oil cooler gasket. Oil looked fine (oil flush wasnt milky nor sludgy) even if the indy said I had coolant in it. There was oil in coolant but most likely because of ofhg, exhaust didnt smoke white either. Conpression test and oil test like the blackstone one would reveal coolant in oil.
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