Cold Tire Pressure - The tire air pressure when the vehicle has been parked for at least three hours or driven less than 1 mile (1.6 km).
Load Rating - Means the maximum load that a tire is rated to carry for a given inflation pressure.
Maximum Inflation Pressure - The maximum tire air pressure that the tire can hold.
Maximum Load Rating - Means the load rating for a tire at the maximum permissible inflation pressure for that tire.
Recommended Inflation Pressure - The cold tire inflation pressure recommended by the manufacturer.
Treadwear Indicators (TWI) - Means the projections within the principal grooves designed to give a visual indication of the degrees of wear of the tread.
Honda Civic Owners Manual. Treadwear
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested under controlled conditions on a
specified government test course. For example, a tire graded 150
would wear one and one-half (1 1/2) times as well on the
government course as a tire graded 100. The relati ...