Reliable Cold Weather ATV Operation



Cold temperature preventive maintenance ensures ATVs run at

peak performance throughout the winter riding season.

While motorcycle, scooter, boat and jet ski owners in northern climates have packed

away their equipment until spring, ATVs provide owners with year-round recreational

and work opportunities. However, ATVs operated in cold winter climates require special

attention to ensure reliable operation throughout the season.

Owners traveling long distances at high speeds may wish to contact their ATV dealers

regarding jetting requirements. Because cold air is denser than warm air and has higher

oxygen content, a richer fuel mixture is required to prevent piston damage. In addition,

check into whether gasoline antifreeze is recommended for the ATV and ensure the air

filter is clean. If the ATV is equipped with a heated carburetor, have a dealer inspect its

operation.

When conventional lubricants get cold, they tend to thicken and sacrifice wear protection,

while synthetic motor oils maintain their viscosities in cold temperatures. “Synthetic oils

do not need to be confined to the engine and transmission,” says Randy Hall of MX

Performance. “Differentials will also benefit from the characteristics of synthetic gear

oils especially in the cold weather.”

Grease the steering and suspension linkage to remove dirt and water contaminants, and

inspect driveline and CV boots to avoid problems with freezing water. Drum brake seals

should also be inspected to be sure they are in place, ensuring drums don’t fill with water

and freeze. Brake fluid can also become contaminated with water and freeze in cold

weather. If the brake fluid has not been changed in the last five years, it may be time to

change it.

Because a cold engine requires more electrical

energy to turn over, and because a battery’s

chemical action slows in cold weather,

winter is an especially trying time for an

ATV’s electrical system. Using the winch as

a lift for a plow system taxes the electrical

system even further.

If an ATV’s battery is between 3-5 years old,

have it checked or replaced. It is also a good

idea to check the charging system. Ensure

the battery terminals are clean and tight, and

make sure the battery’s electrolyte level is at the proper height.

In liquid-cooled machines, it is important to ensure the concentration

of antifreeze is at the correct level. Temperature protection

should be lower than the lowest temperature the operator

expects to ride in during the season. Check the condition of the

hoses and radiator as well.

Finally, before hitting the trails, always make sure the ATV has

had a chance to warm up. If riding on roads where salt is used,

protect the undercarriage and metal components with a rust

inhibitor.

Formula 4-Stroke® Power Sports

Synthetic Motor Oil

The broad 0W-40 viscosity rating of AMSOIL

Formula 4-Stroke® Power Sports Synthetic

Motor Oil (AFF) provides the ultimate extreme

temperature protection for ATV engines and

transmissions, ensuring easy cranking, excellent

cold weather starting and quick post-startup protection

in the coldest winter climates.

Propylene Glycol Antifreeze and

Engine Coolant

AMSOIL Propylene Glycol Antifreeze and

Engine Coolant (ANT) provides maximum

antifreeze and cooling protection in the most

extreme temperatures and operating conditions.

Heavy Duty Metal Protector

AMSOIL Heavy Duty Metal Protector (AMH) is

excellent as an undercoating, protecting metal surfaces

exposed to the damaging effects of salt, moisture

or chemical corrosion.