TVS AND UTVS USED FOR RACING, trail riding, heavy hauling and nearly every
other application share at least one trait: they pose significant challenges to
the fluids that protect them. Despite spending thousands to purchase and modify
their machines, some enthusiasts mistakenly see no reason for using premium
fluids when performing service. AMSOIL synthetic motor oil, grease, fuel
additives and other fluids, however, are formulated to meet the challenges
posed by ATVs and UTVs better than lower-cost conventional products.
1. Extreme Engine Stress
High-rpm, hot-running ATV and UTV engines create
extreme conditions that can quickly degrade inferior oils. The churning action
of engine parts combined with elevated heat causes shearing forces that can
tear apart, or shear, the molecular structure of the oil. Additionally, the
intense pressure the oil undergoes as it is repeatedly forced through tight
clearances, such as the interfaces of the piston ring/cylinder wall and cam
lobe/lifter, also causes viscosity loss due to shear. Oil that has sheared out
of its intended viscosity range can fail to form a protective lubricating film
on critical engine parts, leading to accelerated wear.
2. All-Season Performance
Adding to the challenge, engine oil must balance
cold-weather fluidity with hightemperature protection, particularly in models
used year-round where ambient conditions vary widely. For this reason, many
ATVs and UTVs require oils with a broad viscosity rating (e.g. 0W-40). Lower
â€œWâ€ numbers indicate the oil flows more readily
at colder temperatures, improving cold starts and allowing the oil to circulate
quickly for fast engine protection. The second number indicates the
oilâ€™s viscosity at operating temperature. Higher numbers
indicate the oil remains thicker. Because increased viscosity relates to the
oilâ€™s ability to bear load, one might assume a higher
viscosity at operating temperature equals increased protection. However, using
oil with an unnecessarily high viscosity can increase fluid friction, which
reduces fuel efficiency. It can also increase operating temperature, hastening
oil oxidation and degradation. Oil that is too thick to flow through oil
galleries and tolerances designed for a specific viscosity can fail to protect
the engine. Finding the optimum balance is vital to allseason performance.
The synthetic chemistry of AMSOIL Formula 4-StrokeÂ® Power Sports
Synthetic Motor Oil (AFF) provides performance conventional oils simply
canâ€™t match. Conventional oils contain wax, which causes
them to thicken in cold weather. They also can boil off at high temperatures,
leaving behind harmful engine deposits. Formula 4-Stroke Power Sports Oil, on
the other hand, does not contain wax or other impurities. It offers improved
resistance to high-temperature boil-off and viscosity loss due to shear,
resulting in maximum wear protection and all-season protection and
3. Ethanol Problems
Currently, most gasoline sold in the U.S. contains up to
10 percent ethanol (E10), and government agencies and lawmakers have authorized
sale of gas containing 15 percent (E15). Ethanol is susceptible to water
intrusion; when water collects in the gas tank through condensation or other
means, the bond between ethanol and gasoline can break because ethanol is
hygroscopic (it likes water more than it likes gasoline). This phenomenon is
known as phase separation. The ethanol bonds with the water and sinks to the
bottom of the fuel tank, which can create a host of problems, including the
formation of gums, varnish and other insoluble debris that can plug fuel flow
passages and negatively affect engine performance. When this ethanol/water
mixture is pulled into the engine, it creates a lean-burn situation that
increases combustion chamber temperatures and can lead to piston scuffing or
catastrophic engine failure.
Treat gasoline stored in cans with AMSOIL QuickshotÂ® (AQS),
formulated to address ethanol-related problems, specifically phase separation.
Quickshot contains a high concentration of potent cleaning agents that clean
combustion chamber, injector and carburetor deposits for maximum performance.
It is designed for use at each fill-up for best performance.
4. Chaincase and Gearcase Protection
To reduce costs, some enthusiasts use
automatic transmission fluid or gear lube in their chaincases and gearcases.
Neither fluid, however, is engineered for these applications. Automatic
transmission fluid is a hydraulic fluid formulated without the extreme-pressure
additives needed to provide enhanced wear protection, leaving gears and chains
vulnerable to premature failure. Automotive gear lube is designed to lubricate
hypoid gears and is generally too thick for proper chain and gear lubrication,
impairing circulation and leading to wear and decreased energy efficiency.
AMSOIL Synthetic Chaincase & Gear Oil (TCC) is specifically formulated
for powersports chaincase and gearcase applications. It contains
extreme-pressure additives to provide an extra measure of wear protection,
while it is also designed to repel water and resist foam and corrosion.
5. Water Washout and Increased Heat
Whether at work or play, ATVs and UTVs
are commonly exposed to water, mud and ice. Frequent water exposure can wash
the grease from suspension and steering components, inviting corrosion and
wear. AMSOIL Synthetic Water Resistant Grease (GWR) features increased adhesion
and cohesion properties compared to other greases. It resists water washout to
remain in place, making it perfect for ATV and UTV applications. It is
available in convenient 3-oz. cartridges (GWR3P) for use with the AMSOIL Grease
Gun Kit (GLCKT), which provides the ideal package size for powersports
AMSOIL Series 2000 Synthetic Racing Grease (GRG) is recommended for
high-performance racing ATVs exposed to high heat and friction. It is
specifically formulated for maximum friction-reduction and high-temperature
performance. Following these simple yet effective guidelines when performing
maintenance can help enthusiasts get the best performance and most years out of
their ATVs and UTVs.