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  #13  
Old 12-02-2013, 06:24 PM
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Re: Towing Review//Engine Heat

Hey Brad, thx for the pm.. I'll forward your post to one of the good ppl upstairs bc I'm curious abt this one myself. I've seen similar things in various different semis when climbing steep grades, but it's usually from hauling loads well over the allowed gross. So it's expected. But considering you're well under, it seems a bit strange.

But I don't wanna start shooting in the dark to give you an answer when I can just ask someone. So I'll let you know when I hear something back. But in the meantime, I'd go get an oil change and inform your dealer abt this potential issue.
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  #14  
Old 12-02-2013, 06:51 PM
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Re: Towing Review//Engine Heat

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Originally Posted by Hammerhead View Post
My 2008 CRD's temperature guague never climbed much above normal pulling 5,000 along I-5 from Portland to Los Angeles. I usually climb long grades at about 55-60 MPH in 4th (out of 5) gears.
If the oil temperature is a concern, adding an aftermarket oil cooler could help bring it down a bit. Dunno if Banks has one out yet, but they do seem to be available for the VM Motori turbodiesel.

... that and keeping the RPM up to keep from lugging the turbo.
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Old 12-02-2013, 07:40 PM
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Oh you diesel guys complaining. My Hemi seems to sit at oil temps of 215 - 235 with an outside temp of 40 and I'm not towing anything, so quit complaining

Just teasing Well...it does have that temp but teasing about the diesels
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  #16  
Old 12-03-2013, 09:47 PM
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Re: Towing Review//Engine Heat

First thing I'd do towing that weight is Keep Eco Mode OFF.
It probably won't make much difference in economy on the highway.
It will stay in gears longer from stand still.
My guess is, it might be in the manual.
I doubt it would solve your heating issue, but it's pretty standard to shut stuff like that off when towing that kind of weight.
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  #17  
Old 12-03-2013, 10:40 PM
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Re: Towing Review//Engine Heat

I sure would like to know what the nominal temperatures are for oil-transmission-coolant. From reading on other forums where turbo engines are used the trend seems to be moving up in temps. Designed temp for the transmission is 176 and in the Ram and I think too the Jeep there is a heater to keep it that warm or warmer.
Oil temps since it is using synthetic oil seems to be running 240-245F which according to other forums helps reduce emissions. Not sure what the coolant temp is designed to be but if the rad cap is say 28-30 psi higher temps would not cause an issue either.

I am hoping and that is the key word hoping that this is what Jeep had in mind. Newer technology-reducing emissions-higher temps...
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  #18  
Old 12-05-2013, 01:08 AM
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Re: Towing Review//Engine Heat

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Originally Posted by f1anatic View Post
I will not get into the Subaru details, lets just say that mid way thru 2008 there was a production halt due to failing turbos and pieces sucked into the engines. And that is how Subaru moved to a mandatory 3800 mile oil change interval for all turbo vehicles along with some re-engineered parts.


I guess I'm glad I've always changed my Subaru's oil at 3,750! with almost 150k on the clock and no turbo issues, I'll count myself lucky, I guess.

I've been watching the EGT's using the Torque app, and on WOT see 1200+ temps, with 600-900 under normal driving conditions. I haven't towed anything yet, but the oil temp likes to sit around 208 according to the EVIC. I plan on getting things to tow later on, so I'll be interested to see how this pans out.
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  #19  
Old 12-05-2013, 03:58 AM
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Quote:
Originally Posted by hudsonhawk View Post
Yes, spooling up the turbo will cause the coolant and oil temps to rise. I used to own a RAM 3500 Cummins. The primary concern when towing with a turbo diesel is the EGT (exhaust gas temp). When you start running much over 1300*, you risk melting pistons. Long grades while pulling a load requires much more effort from the engine. This requires more fuel which produces more boost and increases the EGT. The increased cylinder temp causes the increased oil and coolant temps you are seeing. The easiest way to control EGT is to control the load on the engine by locking out the higher gears when towing a grade.

Wonder what the EGT is when you are experiencing the high temps? May need to install a pyrometer to make sure you are not getting into the danger range for temps.
I had a nissan patrol 3lt turbo and towed the same caravan up the same mountains
The patrols engine temps never moved
So i find it difficult to belive the jeep can't do the same
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  #20  
Old 12-05-2013, 07:11 AM
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Re: Towing Review//Engine Heat

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Originally Posted by acilate View Post


I guess I'm glad I've always changed my Subaru's oil at 3,750! with almost 150k on the clock and no turbo issues, I'll count myself lucky, I guess.
I have a 2005 and I always changed it at 3000 miles regadless of Subaru's policies. But my car came with a 7,500 mile maintenance schedule.
I cannot find at the moment the original Subaru press release but this is what it read (Courtesy of IWSTI). Here's on Autoblog, same stuff. It caused a big uproar at the time in the Subaru community.
Attached Files
File Type: pdf 25 - Policy Change - 2008 Subaru Maintenance.pdf (45.1 KB, 8 views)
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  #21  
Old 12-05-2013, 06:57 PM
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Re: Towing Review//Engine Heat

Quote:
Originally Posted by ExcursionDiesel View Post
Anyone towing should invest in a Torque App setup. I have $30 total invested.
ExcursionDiesel
Can you tell me what brand your ELM327 adapter is. I plan to use the Torque App also and it would be good to know what adapter works well with the Jeep and Torque.
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  #22  
Old 12-05-2013, 07:34 PM
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Re: Towing Review//Engine Heat

There are multiple seller of ELM327. I just used the one that is on Ebay and has good seller feedback. If you are using BT it is about 11-14 bucks
If you use wifi it is about 22-27 bucks. I have bought 3 ELM327's for wifi for my use and friends.
Just make sure you get BT if you are using android and wifi for iphone/ipad. Not torque app for iphone using wifi by the way unless they just changed something.
Hope this helps.
Also get the latest software version which I think is 1.5 but check..
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  #23  
Old 12-06-2013, 01:25 AM
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  #24  
Old 12-07-2013, 07:02 PM
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Re: Towing Review//Engine Heat

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Originally Posted by chevyboy_711 View Post
Hey Brad, thx for the pm.. I'll forward your post to one of the good ppl upstairs bc I'm curious abt this one myself. I've seen similar things in various different semis when climbing steep grades, but it's usually from hauling loads well over the allowed gross. So it's expected. But considering you're well under, it seems a bit strange.

But I don't wanna start shooting in the dark to give you an answer when I can just ask someone. So I'll let you know when I hear something back. But in the meantime, I'd go get an oil change and inform your dealer abt this potential issue.
Thanks, Chevy. Just back from a few days up in the mountains without the trailer (the JGC is perfect for the newly-retired). Will haul the trailer over to the beach at Camp Pendleton tomorrow for a week. (Sorry to others in the US suffering from miserable weather. It's going to be below freezing here, which is unusual but not in the same universe as many are suffering now.) No grade so won't be able to test its response again until January. Would still appreciate feedback from experts at Chrysler/Jeep or elsewhere as to whether the observed data is reasonable or not. And, if not, what the corporate solution is. I'll follow other advice in this thread and make sure not to tow in eco, downshift within reason, change the oil soon, etc... But, I look forward to more information and a long term solution. Don't believe I should have to shell out for additional equipment when I'm within the advertised specs.
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