Which tire has the highest Treadwear (UTQG) in size 255/70R15

It's time to buy new tires for my car, but I want to buy a tire that lasts longer than the original brand, OEM. Which tire has the highest Treadwear in this size 255/70R15?


680 - Treadwear

 Continental ContiCrossContact LX - UTQG: 680AB - Tire Rating: 4.17


600 - Treadwear

 Kumho Road Venture APT KL51 - UTQG: 600AA - Tire Rating: 4.25


540 - Treadwear

 Sonny SU800 - UTQG: 540AA - Tire Rating: 4.33


520 - Treadwear

 Continental ContiTrac - UTQG: 520AB - Tire Rating: 0

 Nexen Roadian HT SUV - UTQG: 520AB - Tire Rating: 4.79


500 - Treadwear

 Yokohama Geolandar H/T-S G051 - UTQG: 500AB - Tire Rating: 4.3

 Nexen Roadian AT - UTQG: 500AB - Tire Rating: 4.5

 Nexen Roadian A/T RV - UTQG: 500AB - Tire Rating: 4.13


480 - Treadwear

 Firestone Destination A/T - UTQG: 480AB - Tire Rating: 4.27


440 - Treadwear

 Cooper Cobra Radial G/T - UTQG: 440AB - Tire Rating: 4.43

 Hankook RA07 - UTQG: 440AB - Tire Rating: 4.63

 Goodyear Wrangler HP - UTQG: 440AA - Tire Rating: 3.77


420 - Treadwear

 Maxxis HP-600 - UTQG: 420AA - Tire Rating: 4.38

 Kumho Ecsta STX KL12 - UTQG: 420AA - Tire Rating: 4.5

 Marshal Matrac STX KL12 - UTQG: 420AA - Tire Rating: 4.66


340 - Treadwear

 Goodyear Wrangler SUV - UTQG: 340AB - Tire Rating: 5


300 - Treadwear

 Bridgestone Dueler H/T D840 - UTQG: 300BB - Tire Rating: 3.78