Originally Posted by RonJR

I'm running exactly that setup on my '06 Sport V8. I love it. I run at 40psi highway. Comfort and handling are great, they run very smooth, and there is no noticeable mileage hit. They've done great on the mountain passes on ski trips, as well. I have about 9000 miles on them thus far. I get 17 mpg at interstate speeds, about 17.5 around town, and 19 at more moderate (50-60mph) highway speeds.

I've only done a little bit of moderate off-roading with them, but they worked well. I don't have on-board air on the '06, so I didn't air them down.

I've also been running C-rated BFG KO's on my '94 for 8 years for more serious offroading and am very satisfied with the performance.