Oil in coolant resevour
5 Answers
Yes, coolant can migrate to the transmission or engine via the cooler lines.
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Can water get in both engine & transmission through a bad engine oil cooler gasket or a bad oil filter housing gasket?
No oil on engine, not sure about the transmission. Need to check it.
A leaking OFHG has nothing to do with the coolant and can't migrate.
apbimmer98 answered 4 years ago
Is it oil or transmission fluid? Oil and coolant can in fact mix through a leaking oil filter housing gasket on the N52 engines. Coolant runs through that gasket as well.