See also:

Hitches
Do not use a hitch that clamps onto the vehicle’s bumper or attaches to the axle. You must distribute the load in your trailer so that 10–15% of the total weight of the trailer is on the tongue. ...

Driving style — good driving and fuel economy habits
Give consideration to the lists that follow and you may be able to change a number of variables and improve your fuel economy. Habits • Smooth, moderate operation can yield up to 10% savings in fu ...

Inspecting your tires and wheel valve stems
Periodically inspect the tire treads for uneven or excessive wear and remove objects such as stones, nails or glass that may be wedged in the tread grooves. Check the tire and valve stems for hole ...