[grillzy]

Originally Posted by Edahall

My Suburban is also my daily driver and I put around 50k miles on it each year. What I can tell you is that they are not made for high speeds especially when lifted and 4 wheel drive While I've got the powerplant and gearing to go into the triple digits, I find it much more relaxing and safer to drive slower. 65 mph seems to be the sweet spot and once you start exceeding it, fuel economy plunges quickly due to aerodynamics.

What he said!