The cooling system can be contaminated with oil as a result of engine oil or transmission oil mixing with the coolant. Getting rid of oil from the cooling system is not a easy task and it requires a lot of patience.

The causes are:
- faulty engine oil cooler
- faulty transmission oil cooler
- Bad head gasket
- Cracked cylinder head
- Human error.


Regards.

The moment river Niger don enter river Benue, just buy a better replacement engine............

Hahaha... Funny man! Not true though.

Lexusgs430:
The moment river Niger don enter river Benue, just buy a better replacement engine............

EngRichie:
Hahaha... Funny man! Not true though.

It's true

case study Nissan Pathfinder 05 to 08 model year without radiator bypass. Once deed is done

1. radiator is replaced with upgraded radiator design.

2. Depending on extent of damage, transmission would take a severe beating and changing or rebuilding components.

3. fir the engine low compression due to foreign fluid (not always true). Open engine do a thorough wash, replace gasket and external seals of the cooling system couple back.

Agreed actually. A fix cannot cover every possible situation. It is a DIY tip that works and in some extreme situations, the engine, Radiator, hoses, seals, transmission could be affected already.

I like your inputs and Infact I will update the blog that in some situations, other systems could be affected already.

Thanks Lexusgs430 and Nurey.

nurey:


It's true

case study Nissan Pathfinder 05 to 08 model year without radiator bypass. Once deed is done

1. radiator is replaced with upgraded radiator design.

2. Depending on extent of damage, transmission would take a severe beating and changing or rebuilding components.

3. fir the engine low compression due to foreign fluid (not always true). Open engine do a thorough wash, replace gasket and external seals of the cooling system couple back.