I WANT TO ADD AN EXTRA OIL COOLER TO MY TRUCK TO HELP WHEN TGOWING THRU THE MOUNTAINS. WHO MAKES AN OIL COOLER ADAPTER THAT FITS BETWEEN THE BLOCK AND THE FILTER, WOULD LIKE OTHER SUGGESTIONS ALSO.

 

Two questions...

WHY ARE YOU YELLING?

And


Why do you think you need an extra oil cooler?





I am pushing over 400hp on my tow tune, and have no need for a separate oil cooler.

 

If you want a little more cooling, you can double dip by installing a remote bypass oil filtration system which will not only provide some additional external cooling capacity (not much, but a little), but will more importantly provide extra filtration to keep your oil cleaner and let you extend your oil drain intervals (assuming that you do so only with some UOA testing and a good quality oil).

 

I'm also curious why you feel you need another oil cooler?

Oh, and:

 

When pulling a long grade with truck in third gear (overdrive off), 45-50 MPH, about half throttle, arox. 2200-2500 RPM, Egt 1000-1100 degrees, 12- 15 lbs boost, Ac off, Tranny temp. 160 degrees, Rotella Syn. oil, AIS intake, 4" exhaust, 4:11 gears, OAT 80 degrees, pulling 12,000 lbs---- water and oil temp. climb to 230 - 240 degrees. Normal pulling on flat ground; water temp is 195-200 degrees, oil temp 200-205 degrees. fan clutch works properly, radiator and engine drained and flushed and new ELC coolant. Had oil test by Blackstone Labs and oil is fine. if it is running these temps, my concern is towing in 100 degree and above temps in the Desert and pulling long grades in the Desert.

 

Your fine...

 

I would say your temps are still ok, a touch high but within reason IMO. Have you pulled the oil cooler yet? I would try cleaning and rebuilding it first.

 

Oil cooler o-ring/gasket kit from Bob at Diesel O-rings runs about $80... much better price than the dealer. Mine is getting rebuilt this coming Saturday (I bought the kit for my son's truck, so he's doing mine for me in exchange for me having bought his kit for him - sweet deal as far as I'm concerned).

 

AC off? My wife would not stand for that. It is a diesel..... run the AC. (imo)

 

Curious what would R&R the oil cooler do to lower oil temps? Its a simple tube and fin cooler, if its "plugged" with anything you have bigger issues then high oil temps.

 

I'm talking about the oil cooler on the driver's side of the engine block, which is a shell and tube cooler. Any scale/sludge buildup inside the tubes would decrease the heat transfer between the coolant and oil (which admittedly does not always happen, but sometimes does due to periods of poor oil change maintenance and/or use of low quality oil in an engine which is pushed and/or worked hard). Likewise, if the coolant has not been managed well (additive package), you can end up with scale buildup on the exterior surface of the tubes.

Simply doing an R&R does not really address this issue, but a thorough tube cleaning and mild acid wash through the shell side can easily increase the heat transfer efficiency, thereby providing more cooling for the oil. Obviously, you can see inside the tubes once the cooler is removed, and can tell if there is any pluggage/buildup or not and remove it accordingly. On the shell side, though, you really cannot see inside very well to know if there is scale buildup, but if you see any evidence of scale anywhere else in the coolant loop, you can easily assume that it will also be inside the oil cooler because of the higher temperatures seen there with the hot oil entering the cooler.

 

I would pull the intercooler and look for debris between all the coolers. Grass, straw, bugs, cotton, ect. can all build up between the coolers and block air flow. By pulling the intercooler, you don't have to drain anything.