The chances of oil and coolant mixing in the turbo are remote. The coolant flows through the inside of the turbo body casting and isn't held back by a seal. About the only way coolant and oil could mix in the turbo is a crack in the housing. You are correct, most of the time it is a cracked oil coo...

Hello, New to the forum and have been researching this problem for a while online. I just bought this car and was told by the previous owner that it uses a lot of oil. I found oil in the coolant reservoir which it seems 90% of the time is the oil cooler. I pulled the radiator and pressurized the oil...