Any engine upgrades available for the Buick Enclave?

On good day in the best conditions maybe I could get 20 mpg on our Enclave. Average was probably around 16-18 mpg which is about the same as my 5.3 Yukon XL before it. The big difference is my wife hated driving the Yukon so Enclave was a better option. Not everyone likes driving big trucks/SUVs.
This is exactly why we got an Enclave new, in 2011. I actually was "afraid" to go body on frame. Which is what we've done in 2025. When I was given a Tahoe loaner car, right away I said, hmmm....more powerful, a little less cargo, and same or better fuel economy? Then when I got the 2016 Suburban loaner, I said dang, better fuel economy than the Enclave? And it was in auto, not 2WD.
 
Back
Top Bottom