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Message: [QUOTE="windrunner408, post: 186690, member: 1868"] Thanks guys so much for the input and help. I have to say that I think I am in agreement with wetnsloppy4x on needing a more robust scanner. This truck is my DD and I have only gotten the oil as high as 208*F (it flucuates between 200 and 208F with my thermostat that I have installed in my oil cooler delete system). Even on a WOT run from 10-70mph it wont exceed 208F ECT is usually right around the 190F mark, with it being as low as 188 and as high as 192F. I dont know if the EGR valve has anything to do with this issue or not but I can tell you that I just completed an 800 mile road trip yesterday and OAT/IAT was below 40*F the whole time and it never did this. I could run constantly at 70-75 mph and boost stayed between 7-9 psi while on flat ground the whole time. Some parameters: TFT - 137-142*F, ECT - 188-190*F, EOT - 198-208*F, IAT - 3-4*F below OAT, and EGTs - 580-700*F (depended on the grade of hill). Whereas like I mentioned when I was in 70*F or higher OATs, the boost would be at these levels for about 15 miles and then it would just jump to like 12-14psi under the same driving conditions and I would see EGTs drop by like 50-75*F (hence less fuel and MORE air). [/QUOTE]

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