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Message: [QUOTE="webb06, post: 863636, member: 7680"] as some of you know my dad owns a diesel shop and i work there everyday. we work predominately on power stroke trucks and mostly on 6.0's. we replace oil coolers and install egr delete kits atleast once if not twice a week. ive read of people flushing the cooling system before ever tearing the trucks down to replace the oil cooler. honestly we have never done this unless the oil cooler has ruptured and has sludge everywhere and until very recently we havent had any issues with the coolant and oil temps being within 2-3 degrees of each other while cruising on the interstate. within the last few months there have been 2 or 3 trucks that after getting the truck back together and taking it for a drive the temps are anywhere from 8-20 degrees apart, after installing a new oem oil cooler. so im not sure if its just the trucks? or maybe the sensors are biased? or if i need to start flushing them out. to those who actually flush the cooling system prior to tearing the truck down, give me a detailed step by step of what you do. drain coolant and run straight water? use some kind of detergent? how many times? do you charge the customer for the extra time and detergent used? looking for answers from people who have done this more than a couple times. thanks fellas [/QUOTE]

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