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Originally Posted by 2001 f350 cc 4x4
Engine oil heat source #1 RPM - churning / shearing the oil #2 underside of piston
Try running 62 mph in 3rd - about 2500 rpm then try same speed in OD - about 1775rpm
Same road load - lower internal losses - less coolant flow - EGT should increase - but the oil temp will drop at the lower RPM
Yes, egts play a huge role in this. ...
Thanks for this, guys.
... Sad part is, fella said he just spent "10k on bulletproofing the truck".. all I see is a crappy egr delete kit done to it, and stock head bolts. Not even an up pipe, just a block off plate.
That happened to someone on here. Posted a pic of his engine bay when asking a question after thousands of dollars of "bulletproofing" and one of the other guys spotted the stock torque-to-yield bolts. Goes back to our earlier discussion but the case when bad diagnosis becomes bad behavior. As you said, sad.
2004 F550 CC Lariat
BPD oil cooler relocation and upgraded EGR cooler (spooled), BPD oil bypass filtration, aFe Magnum Force CAI, Mishi radiator, 7.3L fan clutch, EC1 ELC, XDP coolant bypass filtration, '08 trans pan/filter, PTP direct clutch solenoid, blue spring, 6.4 starter, MBRP y-pipe, BD boots/clamps, '05 intake elbow, ccv reroute, Torque Pro + OBDLinkô LX, Autometer EGT