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  #13  
Old 06-01-2014, 10:46 AM
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Re: How much more "cooling" from Tow Group?

Hmmm... I always thought diesels generated more heat based on their compression ratios.
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Old 06-01-2014, 10:47 AM
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Re: How much more "cooling" from Tow Group?

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Originally Posted by ExcursionDiesel View Post
The good news is that Pentastar owners have great cooling capacity based on the data.
It looks like the WK1 Pentastar Tow Group included a trans cooler and an oil cooler. I found a WK2 Pentastar reference to an optional oil cooler coming off the oil filter. I think the 3.6 Pentastar holds 6 qts of oil, which is a pretty good amount for a 3.6 liter V-6.

If the Tow Group includes trans and oil coolers, and I really won't be towing, I may not need either cooler for a daily driver because I probably won't be stressing the trans fluid with daily driving, top quality synthetic is good oil to prevent heat shear and frequent changes of both should help combat the Phoenix heat.

I suppose if worse comes to worse, engine and trans oil coolers can always be added.
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Old 06-01-2014, 12:03 PM
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Re: How much more "cooling" from Tow Group?

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Originally Posted by MDBones View Post
Hmmm... I always thought diesels generated more heat based on their compression ratios.
Energy not transfered to torque is lost as heat in an engine. Diesels take longer to warm up and require less cooling under an identical load as a gas engine. These are indicators of the diesels efficiency.

Most "heavy duty" diesels have larger cooling capacity because they are designed to run continuously at 100% capacity. A gas engine would not last long at that rate. Unfortunately, our Jeeps are not designed as "heavy duty" vehicles just because they are diesels. They can run higher coolant temps when tasked with pulling max loads on a grade.
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Old 06-02-2014, 01:47 PM
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Re: How much more "cooling" from Tow Group?

I know nothing about towing, and my '12 Altitude does not have the tow package (I couldn't find one with AWCG, Tow, and NAV), but I will say when off-roading here in CO... I haven't run into any overheating issues.
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Old 06-02-2014, 08:35 PM
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Re: How much more "cooling" from Tow Group?

Not meaning to diminish all the discussion above, manufacturers test their vehicles in temperature extremes out in the real world. Many years ago I visited Ford hot weather testing facility in south FL. And engine cooling is more advanced today. Remember we have members in the Middle East and we have heard no complaints about engine cooling from them! The old days of water bags hanging off your fenders for cross desert drives are behind us.
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Old 06-02-2014, 11:13 PM
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Re: How much more "cooling" from Tow Group?

I agree that vehicles have plenty of cooling capacity for "normal" use....but heading up a 6 degree grade thats 6 miles long with 7200 lb in tow with your foot on the floor may exceed the capacity. This is true with most vehicles. You have to drive by your guages at that point.
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