ISX Oil in Coolant
01-22-2018, (Subject: ISX Oil in Coolant ) 
Post: #4
RE: ISX Oil in Coolant
(01-21-2018 )Starlight Wrote:  You need to confirm what kind of oil it is. It could be tranny oil. It isnt necessarily engine oil your seeing. Confirm with a sample from the coolant reservoir if your not sure or drain some oil from the tranny. If it is tranny oil then you'll have coolant in the tranny as well as the coolant pressure is higher in the cooler after the engine is shut down but while driving the oil pressure in the cooler will be higher as tranny has a gear pump. Just something to check.

Bingo!
Pull oil samples from; engine, tranny, and if you have a cooling system connected APU (as I do), and send them all to a lab with specific instructions that "You are seeking coolant intrusion, so please Note even 'Trace Amounts'".
This was how I confirmed my tranny cooler and eliminated the engine and APU oil...
The oil samples are WAAAY cheaper than throwing parts at it hoping to stop it, and gives you peace of mind knowing you actually fixed the problem.


User's Signature: Why? Why do I always ask "why?" Because I can't learn or help teach others with "'cause I said so..."
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 Thanks given by: Waterloo , redbeard , Chamberpains


Messages In This Thread
ISX Oil in Coolant - inmsa - 01-21-2018,
RE: ISX Oil in Coolant - Moose - 01-21-2018,
RE: ISX Oil in Coolant - Hammerhead - 01-22-2018
RE: ISX Oil in Coolant - inmsa - 02-13-2018,



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