I bought these
General Grabber HTS tires in late September to replace the Toyo A/T Open Country tires I had on my Silverado before. Exact same size tires, just the different brand. They are heavier, but marketed as low rolling resistance and rated for higher psi and the tread pattern is a highway tread.
So far, I'm not impressed. No A-B-A data, but comparing to my mileage from the same time last year, I'm averaging about 5-10% less than my old tires. I've only got a couple tanks with them so far, so I'll keep trying, but it looks like they weren't the right choice.
Anyone else with these?