Manual Description
The grades represent the tire's ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. Remember that a tire can lose up to half of its air pressure without appearing flat. Ford recommends the use of a digital or dial-type tire pressure gauge rather than a stick-type tire pressure gauge.
Use the recommended cold inflation pressure for optimum tire performance and wear. Failure to follow the tire pressure recommendations can cause uneven treadwear patterns and adversely affect the way your vehicle handles. The tires are hot from driving and it is normal for pressures to increase above recommended cold pressures.
A hot tire at or below recommended cold inflation pressure could be significantly under-inflated. It is normal for tires to heat up and the air pressure inside to go up as you drive. Visually inspect the tires to make sure there are no nails or other objects embedded that could poke a hole in the tire and cause an air leak.
Manual Cover
General
