• API SL/CF, CI-4 Plus
• API SJ, SH, SG...
• ISO-L-EMA
• JASO MA (Motorcycle)
• Cummins 20071, 20072, 20076, 20077
Product Description
AMSOIL Synthetic 20W-50 Premium Protection Motor Oil is specially formulated to provide superior protection and
performance in a wide variety of demanding applications. By incorporating high quality synthetic base stocks
and additives, AMSOIL Premium Protection Oil exceeds the needs of large and small gasoline or diesel engines in
cars, motorcycles, trucks, motor homes, maintenance equipment, heavy equipment, street rods and marine
applications. It is ideal for high mileage vehicles with flat-tappet cams and high-stress vehicles subject to
hot temperatures, heavy hauling, trailer pulling or off road use. AMSOIL Premium Protection Oil resists
oxidation, neutralizes acids, inhibits corrosion, reduces wear and protects against deposits. It provides the
extra anti-wear protection required by engines with flat-tappet cams and high-tension valve springs. AMSOIL
Synthetic 20W-50 Premium Protection Motor Oil offers flexibility and performance beyond conventional oils for
convenience and trouble free operation.
AMSOIL, the leader in automotive synthetic lubrication, produced the world’s first API qualified synthetic
motor oil in 1972. Trust the extensive experience of AMSOIL The First in Synthetics® to do the best job
protecting your engine.
Provides Superior Wear Protection
AMSOIL Synthetic 20W-50 Premium Protection Motor Oil is a high viscosity oil engineered to protect against
metal-to-metal contact. It resists viscosity shear and is formulated with a heavy treatment of zinc and other
anti-wear additives for excellent protection of gears, bearings, cam lobes and other high-pressure components
in engines and transmissions. AMSOIL Premium Protection Synthetic Motor Oil helps extend engine
life.
Exceeds the Requirements of Wet Clutch Transmissions
AMSOIL Premium Protection Synthetic Motor Oil contains no friction modifiers, making it ideal for motorcycles,
maintenance equipment and other wet clutch transmission applications. Formulated to prevent clutch glazing and
slippage, it insures smooth clutch engagement and long term, dependable transmission
operation. AMSOIL Synthetic 20W-50 Motor Oil reduces clutch wear for extended
transmission life.
Resists Oxidation and High Temperature Breakdown
AMSOIL Premium Protection Synthetic Motor Oil overcomes the thermal deficiencies common to conventional
petroleum oils. Volatilization (burn-off), oxidation and excessive deposit formation from high heat are greatly
reduced. Viscosity thickening is controlled and engines run clean, promoting cooler operation and long engine
life in air or liquid cooled engines.
Extends Drain Intervals in Gasoline and Diesel
Engines
The superior AMSOIL synthetic base stock and additive technology exceeds the requirements of both gasoline and
diesel engines. AMSOIL Premium Protection Motor Oil neutralizes acids, disperses soot and lasts longer in
service than conventional oils.
MIXING AMSOIL
AMSOIL Synthetic 20W-50 Premium Protection Motor
Oil is compatible with conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oils,
however, will shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support
extended drain intervals where oils have been mixed. Aftermarket oil additives are not
recommended for use with AMSOIL Synthetic Oils.
SERVICE LIFE
AMSOIL Synthetic 20W-50 Premium Protection Motor
Oil is recommended for extended intervals in unmodified, mechanically-sound vehicles or equipment as
follows:
Diesel Engine Service
•Normal Service - Up to 25,000 miles or one year, whichever comes first, or longer based on oil analysis.
•Severe Service - Up to 15,000 miles or one year, whichever comes first, or longer based on oil
analysis.
Gasoline Engine Service
•Normal Service - Up to 15,000 miles or one year, whichever comes first, or longer based on oil analysis.
•Severe Service - Up to 15,000 miles or one year, whichever comes first, or longer based on oil
analysis.
Motorcycles, Small Engines, Stationary Engines, Heavy Equipment
and Other Applications
•Extend drain intervals based on oil analysis or follow the manufacturer-recommended drain interval.
AMSOIL Ea™ Full-Flow Oil Filters are designed for extended drain
intervals. They stop smaller particles, flow more oil and last longer than regular filters. For best
performance, use AMSOIL Ea™ Full-Flow Oil Filters and replace at the time of oil change. Other oil filters
should be changed at standard OEM* intervals.
Dominator 2 cycle for Boats, snowmobiles,
Motorcycles
Product Application
DOMINATOR is recommended for use in high performance stock or modified two-cycle motors, including air or
liquid cooled snowmobiles, personal watercraft, motorcycles (Moto X), ATVs, go-carts and outboard motors*. Good
for use with coated or non-coated pistons, high-octane racing fuels and exhaust power valves. Compatible with
most other two-cycle oils, however, mixing oils should be minimized.
Use at 50:1 pre-mix ratios (2.6 oz. oil per U.S. gallon of gas) or as injection oil where JASO FC or API TC
oils are specified. Not suitable for use with alcohol or nitro-methane fuels.
Product Description
DOMINATOR, an AMSOIL exclusive formulation, lubricates and protects high performance two-cycle motors, both on
and off the track. High performance motors, particularly those that are modified, operate hotter and at higher
RPMs than recreational motors, and they need good oil for peak performance. DOMINATOR is engineered for racing.
It has the right film strength and clean burning properties for “on the edge” operation.
• Provides excellent film strength for high heat, high RPM motors
• Reduces friction for maximum power
• Recommended for use with coated or non-coated racing pistons
• Recommended for use with exhaust power valves
• Recommended for use with high octane racing gas
• Burns clean; Prevents ring sticking and plug fouling
• Provides excellent protection at 50:1 pre-mix or in injection system
Super Film Strength
High performance two-cycle motors have high compression ratios, which significantly increase combustion chamber
heat and crankshaft bearing pressures. Hot combustion processes quickly burn off and evaporate light oils and
cause rapid piston expansion, decreasing piston-to-cylinder wall clearances. This promotes piston scuffing and
possible seizure. And increased pressure on crankshaft bearings promotes metal-to-metal contact, wear and
pitting.
High heat and pressures require tough oil with better film strength and more lubricity. DOMINATOR, constructed
with AMSOIL heavy synthetic oil, handles high heat better than mineral oils and provides improved film strength
and lubricity. DOMINATOR reduces friction and provides an extra measure of protection against piston scuffing
and crankshaft bearing wear.
Clean Burning
High combustion processes require the proper additives and oils to control deposits. DOMINATOR contains strong,
high temperature detergent additives and highly pure AMSOIL synthetic oil. It prevents deposits that cause ring
sticking, plug fouling and exhaust port blocking. DOMINATOR is an optimized product for severe service.
Amsoil Racing Gear Lube 190 , 250
Product Application
AMSOIL Severe Gear Synthetic SAE 190 and SAE 250 Gear Lubricants are excellent for severe differential
applications, including off-road truck racing, rock racing, rock crawling, tractor pulling, funny car racing
and dragster racing. Other severe duty applications include heavy duty trucks and equipment where increased
lubricant film is necessary. These oils are recommended for use in hypoid gear differentials and other
applications requiring a high viscosity, API GL-5 gear lube. Where limited slip performance is required, use
AMSOIL Slip-Lock® limited slip additive.
Product Description
AMSOIL Severe Gear Synthetic SAE 190 and SAE 250 Gear Lubricants are premium grade, extreme pressure gear lubes
engineered specifically for the demands of severe racing conditions. They are formulated with shear stable,
heavy synthetic base oils for "high film strength" and extra heavy treatments of additives. Their synthetic
formulations provide improved flow over conventional oils, reducing viscous drag and power loss. Severe Gear
SAE 190 and SAE 250 Gear Lubes provide a barrier cushion between metal surfaces that absorbs impact. AMSOIL
proprietary extreme pressure additives form an iron-sulfide barrier coating on gear surfaces for the ultimate
line of defense against wear, pitting and scoring.
PERFORMANCE
AMSOIL Severe Gear Synthetic SAE 190 and SAE 250 Gear Lubricants are specifically engineered for high
horsepower, high torque conditions where centrifugal gear lube sling-off is encountered. These tenacious
formulations cling to gears and bearings for the best possible protection during shock loading, high G-forces
and where pinion gears are installed at steep angles. Custom Severe Gear Synthetic Gear Lubricants provide
exceptional reliability and extended gear life.
• Protects gears from shock loading and tire shake
• Resists sling-off from G-forces and high speeds
• Clings to gears - high pinion style and at steep angles
• Promotes cooler operating temperatures
• Protects against rust and corrosion
• Extends gear and bearing life
Service Life
AMSOIL Severe Gear Synthetic SAE 190 and SAE 250 Gear Lubricants are intended for severe racing and other
applications where extended drain intervals are not beneficial. AMSOIL recommends changing the lubricant as
conditions dictate. Where extended drain intervals are desired, AMSOIL recommends monitoring by oil
analysis.
Mixing AMSOIL
AMSOIL Severe Gear Synthetic SAE 190 and SAE 250 Gear Lubricants are compatible with conventional and synthetic
automotive gear oils. Mixing AMSOIL gear oils with other oils, however, will shorten the oil life expectancy
and reduce the performance benefits. Aftermarket oil additives, other than those specified by AMSOIL, are not
recommended for use with AMSOIL gear oils.
Amsoil Super Shift Racing ATF
Product Description
AMSOIL Synthetic Super Shift® Racing Transmission Fluid is specifically formulated for automatic transmissions
operating in high-horsepower and high-torque conditions. AMSOIL SuperShift contains top-quality additives
selected specifically for racing applications. Its unmatched transmission friction performance provides high
holding capacity for maximum torque transfer and brake power, reduced wear and longer clutch plate life. Super
Shift virtually eliminates slippage, promotes positive clutch engagement and improves overall shift
performance, helping racers improve on elapsed times.
Wear Protection
AMSOIL Synthetic Super Shift Racing Transmission Fluid contains a robust additive system for extra protection,
and its shear stable base oils prevent viscosity loss throughout its service life. Super Shift provides
long-term protection against equipment wear, even when the equipment is frequently subjected to sustained
periods of applied pressure or high horsepower and high torque. Clutches, bearings and bushings last longer,
saving money on transmission repairs.
Extreme Temperature Performance
AMSOIL Synthetic Super Shift Racing Transmission Fluid is highly effective against heat and wear, reducing
transmission temperature and minimizing or eliminating burned up transmissions. Its superior oxidative and
thermal stability inhibits the formation of varnish, deposits and sludge so equipment runs clean. Super Shift
acts as a heat transfer fluid and by controlling clutch slippage it helps reduce operating temperatures of hot
transmissions by up to 50°F. In low temperatures, Super Shift flows readily for dependable startup and
post-startup protection.
Copper Corrosion, Rust and Foam Inhibition
AMSOIL Synthetic Super ShiftRacing Transmission Fluid protects equipment from copper corrosion and rust, even
during equipment storage. It controls foaming for reduced component wear and responsive clutch plate
engagements.
RECOMMENDATIONS
AMSOIL Synthetic Super Shift Racing Transmission Fluid is recommended for automatic transmissions coupled to
high horsepower, high torque engines. It is also recommended where heavy loads place a high demand on
transmissions. Recommended where Allison C-4 or Ford Type F is required. Suggested automatic transmission
applications:
• Drag Racing Cars and Trucks
• Monster Trucks
• Stock Cars
• Off Road 4x4 Vehicles
• Street Hot Rods
COMPATIBILITY
AMSOIL Synthetic Super Shift® Racing Transmission Fluid is fully compatible with other fluids. However, a
mixture of AMSOIL Super Shift® and another oil will decrease performance and offer a shorter service life than
pure AMSOIL Synthetic Super Shift® Racing Transmission Fluid.
Note: AMSOIL Synthetic Super Shift® Racing Transmission Fluid is not recommended as a replacement for Ford
Mercon®, GM Dexron® or Chrysler ATF+ type fluids in passenger vehicle and truck transmissions as it may cause
erratic shift patterns, chattering or noise. AMSOIL is not responsible for transmission performance
inconsistent with those specifications listed and where transmissions have been modified from the original
manufacturer’s design.
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Series 500 High-Performance DOT 3 Brake
Fluid (BF3)
AMSOIL now offers Series 500 High-Performance DOT 3 Brake Fluid. AMSOIL Brake
Fluids provide superior high-temperature performance in auto/light truck,
high-performance, racing and powersports applications.
Package sizes include:
12-oz. Bottle
12-oz. (case of 12)
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Boiling Points
As the brake system heats up, brake fluids with low boiling points begin to vaporize. The brake pedal must
travel further to apply the same amount of force on the brakes, causing a spongy feeling. If enough of the
brake fluid vaporizes, brake system failure may occur. Brake fluid boiling points are measured on two separate
scales:
- Dry equilibrium reflux boiling point (ERBP) - the boiling point of new, freshly-opened,
unused fluid.
- Wet ERBP - the boiling point of a brake fluid after it has absorbed three percent
water.
The minimum dry ERBP for DOT 3 brake fluid is no less than 205°C (401°F), and the minimum wet
ERBP is 140°C (284°F). That might not seem very high, but in most brake systems the fluid in the caliper won’t
reach that temperature unless the brakes are abused. It only takes four percent water contamination to bring a
DOT 3 fluid’s boiling point down to the federal limit.
AMSOIL Series 500 High-Performance DOT 3 Brake Fluid is formulated with the best
zinc-based anti-corrosion additives and pH stabilizers. It is designed for high-temperature stability, yet
flows easily at low temperatures. AMSOIL Series 500 High-Performance DOT 3 Brake Fluid's superior additive
package provides good lubrication throughout the system and can raise boiling points to more than 232°C
(450°F). It keeps water in suspension, slowing its effects on the brake system. AMSOIL Brake Fluids have
high boiling temperatures, ensuring maximum life and reliable braking power, even in extreme conditions.
AMSOIL Series 500 High-Performance DOT 3 Brake Fluid has a dry ERBP of 274°C (525°F) and wet ERBP of 156°C
(313°F). AMSOIL Series 600 DOT 4 Racing Brake Fluid has a dry ERBP of 304°C (580°F) and wet ERBP of 210°C
(410°F).
Compressibility
When a fluid is non-compressible it means it won’t compress into a smaller volume when pressure is applied. In
a brake system, fluid pressure is multiplied by the master cylinder and can reach more than 1,000 pounds per
square inch (psi) in the lines. Like any other hydraulic fluid, brake fluid must be non-compressible at the
expected pressures to transmit force from one end of the system to the other while simultaneously lubricating
the pistons and rubber parts as they move through their bores. If the fluid were to compress, all braking power
would be lost. AMSOIL Series 500 High-Performance DOT 3 Brake Fluid remains non-compressible, even at the
highest pressures generated in automotive brake systems. AMSOIL Brake Fluid provides superior stopping ability
under the most demanding conditions.
Brake Fluid Maintenance
Brake fluids fail either because they boil or because they cease to provide adequate lubrication and corrosion
protection. Both reasons for failure are the result of contamination, usually by water or petroleum
products.
DOT 3 and DOT 4 polyglycol ether-based brake fluids are hygroscopic, which means they absorb
water easily and hold it in suspension, similar to antifreeze. In most climates, moisture seeps into the brake
system continuously through the various seals and microscopic pores of the flexible brake lines. This seepage
can accelerate as a vehicle ages and there’s almost no limit to how much water the fluid can absorb. By the
time brake fluid has been in the system for three years, it can easily reach its wet boiling point. Because
this happens gradually, most drivers won’t discover the reduced braking ability until it’s too late.
Many owner’s manuals recommend changing brake fluid every 24 months to remove moisture.
Approximately half of all cars and light trucks in the U.S. over 10 years old have never had the brake fluid
changed. In addition, powersports applications such as motorcycles, ATVs and UTVs require routine brake fluid
changes as well.
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Series 600 DOT 4 Racing Brake Fluid
(BF4)
AMSOIL now offers Series 600 DOT 4 Racing Brake Fluid. AMSOIL Brake Fluids
provide superior high-temperature performance in auto/light truck,
high-performance, racing and powersports applications.
Package sizes include:
12-oz. Bottle
12-oz. (case of 12)
Not available in Canada
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Boiling Points
As the brake system heats up, brake fluids with low boiling points begin to vaporize. The brake pedal must
travel further to apply the same amount of force on the brakes, causing a spongy feeling. If enough of the
brake fluid vaporizes, brake system failure may occur. Brake fluid boiling points are measured on two separate
scales:
- Dry equilibrium reflux boiling point (ERBP) - the boiling point of new, freshly-opened,
unused fluid.
- Wet ERBP - the boiling point of a brake fluid after it has absorbed three percent
water.
The minimum dry ERBP for DOT 4 brake fluid is 230°C (446°F), while the minimum wet ERBP is
155°C (311°F). Their higher boiling points make DOT 4 fluids appropriate for high-performance cars and
motorcycles and for vehicles used for towing or in mountainous regions.
AMSOIL Series 600 DOT 4 Racing Brake Fluid is formulated with the best zinc-based
anti-corrosion additives and pH stabilizers. It is designed for high-temperature stability, yet flows easily at
low temperatures. AMSOIL Series 600 Racing Brake Fluid's superior additive package provides good lubrication
throughout the system and can raise boiling points to more than 232°C (450°F). It keeps water in suspension,
slowing its effects on the brake system. AMSOIL Brake Fluids have high boiling temperatures, ensuring maximum
life and reliable braking power, even in extreme conditions. AMSOIL Series 500 High- Performance DOT 3 Brake
Fluid has a dry ERBP of 274°C (525°F) and wet ERBP of 156°C (313°F). AMSOIL Series 600 DOT 4 Racing Brake Fluid
has a dry ERBP of 304°C (580°F) and wet ERBP of 210°C (410°F).
Compressibility
When a fluid is non-compressible it means it won’t compress into a smaller volume when pressure is applied. In
a brake system, fluid pressure is multiplied by the master cylinder and can reach more than 1,000 pounds per
square inch (psi) in the lines. Like any other hydraulic fluid, brake fluid must be non-compressible at the
expected pressures to transmit force from one end of the system to the other while simultaneously lubricating
the pistons and rubber parts as they move through their bores. If the fluid were to compress, all braking power
would be lost. AMSOIL Series 600 DOT 4 Racing Brake Fluid remains non-compressible, even at the highest
pressures generated in automotive brake systems. AMSOIL Brake Fluid provides superior stopping ability under
the most demanding conditions.
Brake Fluid Maintenance
Brake fluids fail either because they boil or because they cease to provide adequate lubrication and corrosion
protection. Both reasons for failure are the result of contamination, usually by water or petroleum
products.
DOT 3 and DOT 4 polyglycol ether-based brake fluids are hygroscopic, which means they absorb
water easily and hold it in suspension, similar to antifreeze. In most climates, moisture seeps into the brake
system continuously through the various seals and microscopic pores of the flexible brake lines. This seepage
can accelerate as a vehicle ages and there’s almost no limit to how much water the fluid can absorb. By the
time brake fluid has been in the system for three years, it can easily reach its wet boiling point. Because
this happens gradually, most drivers won’t discover the reduced braking ability until it’s too late.
Many owner’s manuals recommend changing brake fluid every 24 months to remove moisture.
Approximately half of all cars and light trucks in the U.S. over 10 years old have never had the brake fluid
changed. In addition, powersports applications such as motorcycles, ATVs and UTVs require routine brake fluid
changes as well.
AMSOIL is pleased to introduce a new series of
Dominator Synthetic 5W-20, 10W-30 and 15W-50 Synthetic Racing
Oil. The three new premium synthetic racing oils are specially formulated to
withstand the rigors of high-performance and racing applications.
