Hey guy's I just got my truck buttoned back up yesterday after installing my BPD oil cooler relocation kit and I was finally able to get the truck out today for a good drive to watch for improvements on my Deltas and I noticed my Deltas are almost 15 degrees difference now it's a brand new oil cooler and before the oil cooler relocation my Deltas were about 11 degrees difference my EOTs are roughly 206 and my coolant temps are roughly 192 so the oil isn't critically hot but I'm a bit confused as to why my Deltas are different now I'd thought they'd be closer together but there further appart. Anyone have any insight on what could be going on hear? Does the Deltas not matter anymore because the cooler is no longer in the motor? or does it change the Delta range with relocating the cooler? Please help. PS trucks an 03 deleted and the cooler is located behind the passenger side battery. Thanks.

 

"Delta" was only a guide to determine how well the stock oil cooler was functioning on the coolant side. Once you alter the configuration, "Delta" has no significance. What it has changed to is what temperature is your oil at now, regardless of a comparison to the coolant temp.

So if I reading you correctly, now your oil temperature is hotter then it was before. So you've lost some oil cooling ability with the setup if your running the same conditions.

 

No my oil temp is about the same as it was before 206 to 210 my coolant temps I believe are cooler than before by a few degrees I think before coolent was like 196 to 198 now it's steadily around 192.

 

Your coolant temps are lower because the coolant is no longer absorbing the heat from the oil if you now have an oil to air cooler.

 

Thanks for the help I just wanted to make sure what I was seeing was normal.

 

Only thing is with out the Deltas for a reference how will I know when my oil cooler is starting to clog?

 

God do I hate typing on my iPhone.

 

if the one you went with is the big radiator style thats sitting behind the AC condenser you shouldnt "Clog" that thing unless your running really crappy oil through the system... if your running the other style ive seen so many post on here where all it did was move the factory oil cooler outside of the engine next to the alt you might still have the problem because its the coolant that causes the clogging issue not the oil...

as jack stated the deltas were only a reference for the factory setup.. once its modified regardless of which style you go with that chart is useless...

personally for mine i went with the big radiator style and opted for the cold weather package with the 180* t-stat for the oil cooler.... which got rid of the factory cooler all together... so the coolant and oil are no where near each other except for in the distribution block but even then they arent narrow passages... temp wise i run a bit cooler on the oil than the coolant unless it gets close to the 100*s outside.. then they get pretty even... but even when i was towing a overloaded 7'x16' cargo trailer and had the bed packed full mid summer i still didnt see higher than 210* on either.. most times it sat around 203-205*... rest of the time my oil is 184-189* and the coolant tends to sit around 190...

 

This is the style I have it mounts the OEM cooler behind the passenger side battery I really wanted to get the air cooled style but it was out of my budget now my EOTs are right at 206 pretty steady and coolant temp is right at about 192 pretty steady with no load. The biggest load I'll ever be pulling is my 6600 pound travel trailer.

 

did you switch off the factory gold coolant for silicate free rotella ELC coolant when you did the conversion? if so i wouldnt worry about clogging issue then... even though mines separated i still kept the coolant filter in place just to collect any trash that might still be floating around in the system.. whether it be residual silicate sand or any rust flakes that might break free from inside the iron block...

if you kept the gold just change the coolant every 30K and should be fine...

 

I just had my system flushed prior to this at the local service shop. they said they used green coolant but they didn't say what brand I highly doubt it was the factory coolant though I know I should have asked.

 

dont know of any 6.0's that used the old green glycol from factory... as far as i know they all called for the Gold which was a Hybrid Organic Acid.. Ive always been told if it called for Gold not to use the old green stuff as it ate the seals and had adverse reactions with aluminum components (ie it ate them).. but just what i always heard on it... for the 6.0's everyone ive always talked to said to either stick with the gold but change it out every 30K or switch over to the Rotella ELC coolant which is CAT 1 compliant and silicate free...

Jack's more "knowledgeable" when it comes to the coolant makeups and things like that maybe he can shed better light on it for me...

 

I've had the truck for little over 3 years now and it had green coolant in it then and that's what was in it until I had it flushed 3 weeks ago I never experienced any issues other than oil cooler issues but I'm also not a coolant expert and maybe those issues are over a long period of time

 

I picked up my 2007 6.0 type 3 ambulance from the shop last week after having the remote (radiator style) oil cooler with the cold weather kit installed (along with a BPD helical design EGR cooler, coolant filter and new turbo).
We drove it about 1,100 miles on a trip over the past few days, and I noticed the same thing as the OP on deltas on torque pro. We were 'maintaining the flow of traffic' (75-80) for extended periods.
One thing I did notice about the temps was that the EOT dropped when I was accelerating (oil pump pumping more oil through the cooler) and increased when coasting (less oil flow). The engine temps did the opposite (increased when accelerating and decreased when coasting).

The high deltas I saw were a product of one being low and the other being higher (although it's no longer important in this configuration).
My temps were both in the range 180-203 the entire trip, averaging 186-188.

I just thought I'd add my observations as to why you may still see higher deltas than you expected (even though they don't really matter any more if you've split the flows in your system).

 

David,

I just realized that I replied to another thread you posted on deltas...
Did you replace your oil cooler or just relocate it?
If you just relocated it without replacing it, you probably need to flush it (as Bismic recommended in the other thread).
It should be more convenient in it's new location, but the factory oil cooler still has the same potential issues (they're just easier to deal with in the new location).
My last post in this thread was about the system I installed that completely separates the oil and coolant flows.
If you need a flush kit for the 6.0, let me know - I have one new in the box that I'll make you a deal on.

Tony