Which tire has the highest Treadwear (UTQG) in size 255/45R17

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 255/45R17?


540 - Treadwear

 Continental ExtremeContact DWS - UTQG: 540AA - Tire Rating: 0


500 - Treadwear

 Nexen CP672 - UTQG: 500AA - Tire Rating: 4.57


340 - Treadwear

 Continental ContiExtremeContact DW - UTQG: 340AAA - Tire Rating: 4.58

 Kumho Solus KH15 - UTQG: 340AAA - Tire Rating: 4.18


320 - Treadwear

 Nitto NT555 G2 Summer Ultra High Performance Tire - UTQG: 320AAA - Tire Rating: 0

 Kumho Ecsta SPT KU31 - UTQG: 320AAA - Tire Rating: 4.17


300 - Treadwear

 Nitto NT555 Summer Ultra High Performance - UTQG: 300AA - Tire Rating: 4.13


280 - Treadwear

 Bridgestone Potenza S001 - UTQG: 280AA - Tire Rating: 4.19

 Continental ContiSportContact 5 - UTQG: 280AAA - Tire Rating: 0

 Toyo Proxes T1R - UTQG: 280AAA - Tire Rating: 4.65

 Continental ContiSportContact 3 - UTQG: 280AAA - Tire Rating: 4.68


220 - Treadwear

 Michelin Pilot Sport - UTQG: 220AAA - Tire Rating: 4.58


140 - Treadwear

 Pirelli Pzero Assimetrico - UTQG: 140AA - Tire Rating: 4.38