Changing single oil cooler to duel
02-15-2020, (Subject: Changing single oil cooler to duel ) 
Post: #25
RE: Changing single oil cooler to duel
Most highway trucks in Australia run at around 64T (140,000lb) and I haven't seen a new 600hp engine with dual coolers since the cm570 was phased out.

It sounds like you had a bad oil thermostat and you've fixed it.

If it's not a bad oil t/stat it's usually a coolant temp issue or overly advanced timing in a poorly deleted ECM file.

Also remember, the coolant cools the oil - So once everything is at running temp and under load, oil will always be warmer than coolant. They shut down at 125 Celsius/ 257 Fahrenheit.
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 Thanks given by: Rawze , Toolguy


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RE: Changing single oil cooler to duel - Signature620 - 02-15-2020



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