Well, I don't know if it works any better then others. I have use dthe Amsoil 10W30 for 10 years in my Camry V6 with 7500 change interval and now has 147,000 miles. It get's hot as hell where I live and certainly as hot as your location. I also have run it in a Ford 4 cyl with no problem (now using a 0W30 in that 4 banger) so in my opnion it appears to hold up. Depends on how hard your engine beats up the oil. My Camry about 7500 is it, My Buick can go 12,000 between changes with it. I fyou change every 3000, it will definitely hold up well.