Just for comparison, how long does it take for other people's transmission to reach ~90 °C / 200 °F on normal (not towing), nonstop highway driving in 8th gear during warm weather?
I'd peg mine at ~45 minutes. I haven't collected scientific data to corroborate it, but I think my fuel economy improves once the temp gets up there.
That's about what I'd say. Highway driving in 8th with the TC locked puts very little heat into the ATF.
On my 40 mile, 50 minute commute (when I have to drive it) doesn't completely heat the ATF to operating temp in the 190's. If traffic is bad and it has to do a lot of shifting, it gets up there a lot more quickly.
Yup, sounds about right. It's too bad we don't have the "thermal management system" that the Ram 1500 utilizes ,ie thermostatically controlled engine coolant lines that run through the transmission. During cold weather operation the transmission will warm up much faster than with passive heating only. This can result in less wear and a claimed fuel efficiency improvement of up to 1.7%.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Jeep Garage - Jeep Forum
1.7M posts
176.1K members
Since 2009
Jeep Garage is where you can talk about all your favorite jeeps including the Cherokee, Liberty and Grand Cherokee.