Jeeperz Kreeperz
Well-Known Member
- Joined
- Jan 15, 2018
- Threads
- 40
- Messages
- 454
- Reaction score
- 490
- Location
- New Hampshire
- Vehicle(s)
- 2021 JLUR 4xe
- Thread starter
- #1
I’m on an extended 7,000-mile camping trip in the 4xe. I’ve overloaded the Jeep at about 1,300 pounds of cargo and people. I installed Air Lift 1000 coil spring airbags, which completely resolved suspension and handling issues. First 2,500 miles were uneventful. But in attempting to get over an 8,000 foot pass, she got up to 230 degrees. It didn’t set off an overheat light, but I had to pull off a couple times to let her cool down.
I judiciously switched between electric and ICE, which does delay the overheating. Switching to electric would stop the temps from climbing (but not reduce them). Then, after about a minute, I would switch back to ICE, which would drop temps by 10 to 12 degrees F. Then they would climb up again. Rinse, lather, repeat. This burns through the EV battery charge very quickly.
We have more (and larger) mountain passes on the itinerary.
Question: Can I add a coolant additive?
I can drop about 150 pounds (well, not ME!). But looking for other ways to keep from overheating.
I judiciously switched between electric and ICE, which does delay the overheating. Switching to electric would stop the temps from climbing (but not reduce them). Then, after about a minute, I would switch back to ICE, which would drop temps by 10 to 12 degrees F. Then they would climb up again. Rinse, lather, repeat. This burns through the EV battery charge very quickly.
We have more (and larger) mountain passes on the itinerary.
Question: Can I add a coolant additive?
I can drop about 150 pounds (well, not ME!). But looking for other ways to keep from overheating.
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