Originally Posted by dgvu89
No, it's not. But I guess Dexos Gen 2 help you to find the oils with best anti-wear protection.
When synthetic high mileage oils don't meet Dexos specs it generally has nothing to do with anti-wear protection. It's more likely due to not meeting Dexos catalyst, LSPI and fuel economy specs. Generally speaking they have MORE anti-wear additives which throw them out of spec.