See also:

Driving on Snow or Ice
Most of the time, those places where the tires meet the road probably have good traction. However, if there is snow or ice between the tires and the road, you can have a very slippery situation. ...

Following Distance
Stay at least twice as far behind the vehicle ahead as you would when driving the vehicle without a trailer. This can help to avoid situations that require heavy braking and sudden turns. ...

Engine Air Cleaner/Filter
The engine air cleaner/filter is located in the engine compartment on the driver side of the vehicle. See Engine Compartment Overview for more information on location. ...