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Fyi .. Oil in coolant exspansion tank

The Welsh Griffin

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TBone
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Vancouver Island
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2021 Jeep Gladiator
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Work in an Oven
I just read a great article on the Eco diesel and found this as something to check on during preventative maintenance days . I'll put the link at the bottom , it's interesting for those of us new to diesels.

"The most common problem is an oil cooler failure which makes many people angry and frustrated with EcoDiesel. This engine has a water-cooled oil cooler. It uses an engine coolant to cool engine oil. Usually, the oil cooler fails during towing or heavy hauling when engine oil reaches high temperatures and can seep into engine cooling systems. Oil coats everything inside a radiator, cooling passages, and may reduce the efficiency of the cooling system. The clear sign of this problem is the presence of oil in the coolant expansion tank."

https://www.motorreviewer.com/engine.php?engine_id=191
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