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Oil in Volvo Coolant Diagnosis

volvo coolant 02

Get help with diagnosing the issue of oil in your volvo coolant.

Volvo coolant is a fluid which flows through or around a device to prevent the device from overheating, transferring the heat produced by the device to other devices that either use or dissipate it. An ideal coolant has high thermal capacity, low viscosity, is low-cost, non-toxic, chemically inert, and neither causes nor promotes corrosion of the cooling system. Some applications also require the coolant to be an electrical insulator.

MVS Forum Member derbydog37 asks:

After changing the volvo coolant it runs fine with no smoking issues. After 20-25 miles it starts to smoke a bluish grey color and still has no miss. All cylinders check out the same on a compression test. It is a 2.3 with turbo and has 200,000 miles on it. I started it 3 days ago and drove it for about 15 minutes to see if i could see any leaks from a possible head gasket leak and lost 3/4 gallon of volvo coolant. At idle there is no smoke to talk about but under acceleration and when letting off it starts to smoke. Any thoughts or help would be appreciated..Thanks.

MVS Forum Member Ozark Lee replied:

How does the engine oil look? How does the volvo coolant look? If it is oil is creamy and gunky or if the coolant is oily, chances are you have a bad radiator. If they otherwise look fine, compression test notwithstanding, I think you blew a head gasket.

MVS Forum Member pfeener says:

Looking at this from a logical standpoint; if you lost 3/4 of a gallon of antifreeze in 15 minutes; that’s a lot and you should be able to locate it. The options are:

1. leaked out on the ground – not likely you would have seen it.

2. leaked into a cylinder because of a blown head gasket – again not likely; you would have white smoke pouring out the tailpipe and a huge skip in the engine.

3. leaked into the oil either by way of a blown head gasket or a bad radiator – this is the most likely. What does your oil look like. Is it chocolate colored and frothy?

The title in your post talks about oil in the volvo coolant but your actual post talks about loosing excessive amounts of anti-freeze. If you have oil in the coolant the most likely cause is a bad radiator. Could you talk about this some more and clear up this issue?

Oil in Coolant Diagnosis

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