Diesel cooling options and ideas

[caryt]

If removing the grill has no effect then no grill will help...as shown by testing on JL owners. Whats needed is a auxiliary oil cooler without filtering preferably with AN8 min hoses. Water temp hasn't been a issue in my case at all and oil can get 240* with water temps easily below 220* Not sure there is any way to do whats needed ...
So far just turning the fan on high using the Tazar while temps reach 230* oil has worked in 100* heat and 6*++ grades , never gets over 240* weighing 7400lbs but I do not tow.

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[RKcreative]

I did this last year , it didn’t help much

Thanks for Chiming in. My thought behind it was only activating the system when I am towing across the gauntlet on I70. The camper I tow is around 3,500 lbs, high altitude passes is the only time I see my temps rise. (Coolant around 240, oil 260)

 

[RKcreative]

Has anyone confirmed the compatibility of the ZF 24119503407 transmission oil pan?

I contacted ZF directly, but they stated that they cannot compete with MOPAR and therefore were unable to provide any answers. They referred me to Eriksson Industries, and I’ve reached out to them—still waiting for a response.

Additionally, I have a friend who works in marketing for ZF in Europe. I’ve also reached out to them to see if they can ask around to provide more information. I'll update as soon as I hear back.

 

[RKcreative]

I had some back and forth communications with https://erikssonindustries.com/. They say that the BMW oil pan "should fit"

 

[Chance575]

Thanks for Chiming in. My thought behind it was only activating the system when I am towing across the gauntlet on I70. The camper I tow is around 3,500 lbs, high altitude passes is the only time I see my temps rise. (Coolant around 240, oil 260)

went east across i70 last sept to Moab, no problems over heating towing 5200+ travel trailer. Nowit did throw a turbo code at the top of large hills for P00AF

 

[Madtom]

Was anyone able to find a local vendor that could work with Primer's files for the larger aux cooler mount? Everything I have found so far was overseas or folks that didn't have capability to unroll IGE files. If someone does find a local place willing to prototype let me know.

Tom

 

[tj3089]

Has anyone tried replacing the thermostat on their EcoDiesel? This gentleman in the video recommends it and says it'll lower operating temperature is about 20° but I'd like to hear from people who have tried it.

 

[Desert_Gladiator]

Has anyone tried replacing the thermostat on their EcoDiesel? This gentleman in the video recommends it and says it'll lower operating temperature is about 20° but I'd like to hear from people who have tried it.

A lower temperature thermostat does nothing to address inadequate cooling capacity. The only way it helps is by starting at a lower temperature IF the conditions would not cause the engine to be operating above the thermostat opening temp anyway. In this case, it might buy you a little extra time before overheating/derating, but that's it. There's also potential downsides -- modern engines are designed and programmed to run at specific temperatures. Without tuning to reflect the thermostat change, you may run into performance issues or create a condition that causes trouble for the emissions systems (if present).

 

[biodiesel]

Has anyone tried replacing the thermostat on their EcoDiesel? This gentleman in the video recommends it and says it'll lower operating temperature is about 20° but I'd like to hear from people who have tried it.

GDE sells an optional low temp thermostat with their tune for the 2nd gen EcoDiesel, but it needs a tune to support it otherwise it will throw a code. Here's what GDE advertises:

"This thermostat is an OE Genuine Behr product, it starts opening at 88°C (190°F) and is fully open at 98°C (208°F). This will drop warm operating temps for coolant and engine oil about 10°C (18°F). This is also beneficial for towing long grades as full cooling is reached at lower temps, so it takes longer to reach overheat protection in extreme environments (i.e. 100°F towing large loads up a 6% grade) like Davis Dam in Arizona.

This product is only emissions compliant when used together with the GDE emission compliant tuning. It will only be sold to customers with Gen2 EcoDiesels (2014-2018 Grand Cherokee, 2014-2019 Ram 1500) already running this calibration set. Included is the new thermostat + housing assembly and the o-ring."


88°C Thermostat - Green Diesel Engineering

 

[PJZ]

Took me a little while to find time, but finished up the install of the larger cooler that @Primer Gray built. As noted the quality is excellent. I had to do some trimming and massaging of the AEV winch plate brackets that come down along the frame horns. Once that was done everything fit perfectly. Added a couple holes on the sides to mount up the remote shock resovoirs.

Been driniving the JT to work all week. Coolant temps are much lower. in the morning it is hovering around 200*. Today it was mid to high 80's and I didnt see oil temps over 225 even when pushing up over 80mph and 1100* exhaust temps for shorter bursts. Prior to the cooler add the high exhaust temps would mirror quickly climbing oil temps. Going to tow next weekend on a route we have taken before. In the past we had to throttle down a lot on the hills to keep temps reasonable. Will be able to do a decent stress test to see how it performs.

So far, this is a very solid cooling upgrade.
Big thank you to @Primer Gray! Great guy who also provide real time tech support when I was working on this.

 

[vicsvx]

Derate isn't an issue unless you're towing heavier loads in hilly or mountainous terrain, especially in warmer ambient temperatures.

Not necessarily true... The mountain pass heading north on I17 just north of Phoenix, is pretty steep and my buddy had his JLURD derate cruising at around 75mph, ac on, NOT towing and temps outside were about 110f.

 

[biodiesel]

Not necessarily true... The mountain pass heading north on I17 just north of Phoenix, is pretty steep and my buddy had his JLURD derate cruising at around 75mph, ac on, NOT towing and temps outside were about 110f.

Yeah, I should have made a caveat to what I originally posted. I live at 7,000' feet in northern New Mexico and have seen some pretty hot oil temps unloaded going over long steep climbs.

What I should have posted is that as long as you watch your speeds, you shouldn't have any issues with oil temps unless towing. Even when towing, the key is to watch those speeds. And yes, that might mean dropping the speed down to 25 - 30 mph to keep the oil temps in check.

 

[CrazyCooter]

75mph isn't cruising in my opinion either.....that bordering on hauling ass?

 

[biodiesel]

75mph isn't cruising in my opinion either.....that bordering on hauling ass?

75 mph is fast in the Gladiator. My Ram 1500s can handle those speeds, but the Gladiator lacks a lot of on-road performance once you get up to those speeds. Between wind sensitivity and imperfections in the road, I like to keep my speed closer to 70 mph even on highways with a 75-mph posted speed limit.

 

[vicsvx]

75mph isn't cruising in my opinion either.....that bordering on hauling ass?

In AZ.... 75 is cruising lol anything slower is a hazard... Most do 85-90!

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