Is it safe to drive in 4 wheel all time?

Hello,

It will depend on which four wheel drive system your Jeep is equipped with.
One is Select-Trac, another one is Command-Trac/Quadra-Trac.
Easy way to tell, by looking at the selector lever. If your Jeep has the option on the selector lever: 4WD all time, then you can leave it in that selection.
However if it only has 2WD 4WD(hi) 4WD(low), you should not leave it in four wheel drive all the time.

https://www.youtube.com/c/2carpros/featured

Please let me know of any questions.
Thank you.