Deltas in a 6.4l???

[Motorboy8769]

Is this something as bad a the 6.0 was I noticed a very very big difference in my ECT and my EOT. I know in the 6.0 10deg difference was a sign if a bad oil cooler is this the same on the 6.4?


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[superduty6.4]

I have read several posts where people say anything consistently over 15 and you should start preparing for an oil cooler replacement or at least a cooling system flush to try break open the clog.

[srjd]

Yup anything over 15 you most likely got trouble. I usually see 4 degrees on the highway

[superduty6.4]

I'm about 4-6 average unloaded. 4-8 towing.

[Motorboy8769]

Ok so test it the same as with the 6.0 the. 60-65 mph and then monitor the temps?


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[strokinpower]

I think you are supposed to test on flat ground at like 2200 rpms.

[04hdfatboy]

Originally Posted by superduty6.4

I'm about 4-6 average unloaded. 4-8 towing.

These are about what my delta's are also. Yes i believe the test is flat ground at 65 mph once the truck is up to operating temperature.

[Motorboy8769]

Ok I'll have to check it out my truck don't warm up on my way to work its too short of a trip and I saw 180 ECT and 80 EOT


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