As a truck driver I can say that there nothing wrong with cheap Chinese tires in summer. But when it’s cold they turn hard as a hockey puck and has no traction. Some more expensive is quite ok.Caterpillar does not lube their tires at the factory. That first change is a bitch. After that, they're always lubed.So tires are rated on how to get them off? I thought it was about grip, durability, noise reduction...