ISX OIL COOLERS

[Rawze]

(01-28-2017 )Tanker93 Wrote:  Ah well that pretty much settles that idea! Thanks for the quick reply.
The only reason I thought of this was because one of the drivers is complaining that the alarm will go off unless he watches the oil temp like a hawk. I did a quick trip in it myself last week and even with 1 empty trailer the oil temp gets up to 120 degrees (Celsius) pretty easily and the thermostat has already been replaced.

Meybe replace the oil temp sensor and/or verify its readings. Could be the turbo is getting too hot or the oil cooler efficiency is bad from blockage or buildup of sludge in coolant system.

oil temp should be 215-F normally, and 240-F max.

Too much internal engine load or internal friction can cause it too. Spun bearing, etc. can cause it. I have also seen a lot of bad deletes/programming cause excess internal friction and high oil temps too.

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It is always better to fix a problem properly than to mask it by other modifications. I call it jumping over a dollar to grab a dime.