It got what, like 4mpg? No, not good. But if you watch some of the other videos TFL does of the Ike, the other trucks are getting low single digit mpg as well with a trailer behind it. "The Ike Gauntlet" is a brutal steep climb, no vehicle is going to get good mileage especially with a trailer behind it. Comes down to how much/how often you tow.
310hp/348hp the 2.7 makes were big numbers just 20 years ago. Thats more than a Chevy Vortec 5300 from the early 2000s.
Would I want the Chevy 2.7T or Toyota 2.4T if I was going to be towing 3000-5000lb weekly, or even monthly? Eh probably not. Couple times a year, yeah itll be fine.
FWIW,
heres the "Ike Gauntlet" route they test. Ive driven it many times. Its steep, and at high elevation. Been stuck in traffic on it many times too watching cars next to me struggle to find traction too haha