See also:

Hydroplaning
Hydroplaning is dangerous. Water can build up under the vehicle's tires so they actually ride on the water. This can happen if the road is wet enough and you are going fast enough. When the ve ...

Owner Checks and Services
At Each Fuel Stop Check the engine oil level. See Engine Oil . Once a Month Check the tire inflation pressures. See Tire Pressure . Inspect the tires for wear. See Tire Inspection . Che ...

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 ...