Engine/Transmission (1998.5 - 2002) 180 thermostat to keep oil temp down?

[azcummins]

Was pulling my new 3horse GN today through the I-70 Colorado Mtns. and I was pulling 1200 EGTs at 62 rpm in 4th gear up Vail pass.



My water temp was at 200 or right above 190 but my oil temp was right @ 230 on my ISSPRO gauge. Would a 180 thermostat help things out? I know the cummins shouldn't be above 220.



Note: Air temp was prob. 90 and I didn't have the A/C on.



Whatd'ya guys think?

 

[PRout]

An external oil cooler will help ALOT more.



Im surprised they aren't a popular addition to our trucks.



Dont think 10 degrees of water temp change is going to make the difference we would want in oil temps.



On my last truck I took about 15' of 1/2' copper tubing & used a hand bender to bend it into a couple figure 8's in front of the radiator, and it made a major difference in oil temps, and also the water temp NEVER climbed over normal again. Will probably do something like that on this truck.

 

[B.G. Smith]

Thermostat

I think your truck came with a 180 deg. thermostat. bg

 

[lizzyhermit]

Shortshift, where did you tap in the figure eights ?

 

[HEMI®Dart]

Does anyone know if the oil is cooled ( by the OEM cooler) BEFORE it gets to the filter or AFTER it leaves the filter?



I ask because if a person adds another cooler, the oil will re-heat again (to approx water temp) as it goes back into the block.



That would kinda be defeating the purpose.



6BT OEM Oil Cooler below:





http://www.yinlun.com/images/bclqq(6.jpg

 

[WestTN]

oil temp

Where are you measuring your oil temperature? When engineers measure oil temperatures and make recommendations about what it should be, they are usually measuring the temperature in the sump unless accompanying data says otherwise. .

 

[Texas Diesel]

There is a temp probe port on the oil filter housing.



Here is a link to PermaCool, they have a oil filter relocation kit and you can add temperature controlled cooler for the oil if you want to. I'm thinking about relocating the oil filter like I did on my Dakota, the dog gets scared when I change the oil because of all the cussing.



http://www.permacool.com/Catalog/Cat_page08.html

 

[PRout]

Lizzy,



I used one of those aftermarket oil filter adaptors (Like Perma-cool) that replaces the oil filter and routes the oil to a remote mounted filter. Then, from the filter ran the hoses up front to the tubing. Then it returns back to the motor alot cooler. Could compare the temp at the inlet, compared to where it returns to the motor, and it was alot cooler (by touch). That was while the truck was stopped without ariflow across the tubing. Later added an actual cooler inline. Motor never had a heating problem, even pulling heavy through Death Valley.



Hemi,



Dont know your answer, but while pulling heavy, IF the oil actually was warmed by the coolant (which wouldnt be much), that means it would be pulling heat from same... still adding to the overall heat removal from the motor.



The only thing Id be concerned with, is keeping good pressure through the motor.



In the winter, you can just put a peice of cardboard in front to block part of it off.

 

[azcummins]

My probe is on top of the oil filter.

 

[HEMI®Dart]

Pro-Blend Diesel Cool

az,



What do you think of this? Claims to lower oil temp by 57°. Pro-Blend seems to be a liget company. Their "40 below" is popular.



http://www.pro-blend.com/tech9012.html





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[azcummins]

Hemi-

Sounds nice, but also sounds like one of those "endall products". I'm real nervous about additives to engine oil. Until cummins says ok, I'll stay away. Are you going to try it?



I have no idea how it works either... do you?