View Full Version : Oil/coolant mixing

07-24-14, 10:50 AM
That usually means the oil cooler in radiator is leaking?

07-24-14, 11:30 AM
Pink coolant ?? Frothy transmission fluid ?

......or do you have a Z-car with V03 - HD Cooling with engine oil cooler in the passenger end radiator end tank ?

Yep, in either case it means the oil cooler inside the radiator tank(s) has gone bad.

07-24-14, 01:21 PM
98 deville. Not my car. Yet. Seller says it is mixing. In crankcase? Surge tank? Maybe car does not have oil cooler?

07-24-14, 01:35 PM
A 98 Deville will have a transmission oil cooler in the driver's end radiator tank. IF it was special ordered with RPO V03 it will have an engine oil cooler in the passenger end radiator tank.

A leaky transmission fluid cooler makes a mess of the coolant/surge tank/transmission fluid - pink froth. A leaky engine oil cooler makes a mess of the engine oil and coolant - creamy coffee-colored froth.

07-24-14, 09:19 PM
Yes, I know what happens when coolant mixes with trans fluid. Bad things

07-25-14, 08:59 AM
I'm looking for the approximate color of the mess.