How do you know?
 

How do i know if my truck has an aux. engine oil cooler? and also how do i know if i have the new 600 engine in my 04?

On the drivers side of the engine valve cover (Black plastic) read the sticker for the HP numbers. 305 Hp is the 305/555 and 325 is the 325/600. The engines don't have auxilary oil coolers from what I have seen.

With the oil being sprayed on the under sides of the pistons for cooling, there needs to be a way to get rid of the heat in the oil. There is an oil cooler on the heater hose line; That's what the oil filter mounts to!

HTH

Tony

so with stock oil cooling systems hauling a 10000 horse trailer every weekend will i be ok or is there somthing i need to do. not looking for anymore power just trying to make my babe last. Thanks,

Likewise, I want to make sure mine will last. That's why I put on the gauges, just so I know what is going on. The factory water temp gauge is reasonably accurate, even if you don't get a number. However, the factory oil pressure gauge is a TOTAL LIE! Hot (pull a hill w/ load) oil pressure reads ~40psi on the factory gauge, while the real gauge reads 12-14psi.

I am also ANAL about turbo (exhaust) cool down. I ALWAYS idle down to ~300F before every shutdown.

I also stay on top of the maintenance. I change oil at 7500, and the other fluids at the interval the owners manual calls for.

HTH

Tony

AHHH: 12-14LBS OIL PRESSURE
Clark