One of the things that gets asked about and commented on a lot is the use of 2H vs. 4H Auto in the Jeep Wrangler 4XE. While there are many that believe that 4H Auto is inherently less efficient, the engineers at Jeep say there is little difference. In this video, I attempted a 2H vs. 4H Auto shootout. However, my numbers were a little skewed by the test conditions and 4H Auto actually did substantially better than 2H in my test. I will have to recreate the test at some point.