This is some of the best oil you can buy for use in 4 stroke engines. Snowmobiles, ATV's, lawn mowers, outboard motors, mini-bikes and many other uses.

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SAE 10W-40 SYNTHETIC HIGH PERFORMANCE MOTOR OIL
API Service SJ, SH, SG, SF, CD, CF, JASO MA
Specially formulated to lubricate and protect 4-stroke recreational motors.

AMSOIL Formula 4-Stroke Synthetic Motor Oil is specially formulated for four-stroke recreational motors, including ATVs, Snowmobiles, outboard motors and motorcycles. It may also be used in cars and trucks. Its broad viscosity range makes it excellent for use in both hot and cold temperature extremes.

AMSOIL Formula 4-Stroke Synthetic Motor Oil may be used in all applications specifying 0W-40, 5W-30, 10W-30 and 10W-40 viscosity grades and is recommended for applications requiring the following specifications:

API SJ, SH, SG, SF, CD, CF
JASO MA

Use in Yamaha, Suzuki, Honda, Mercury, Kawasaki, Arctic Cat, Polaris, Nissan and Bombardier motors and transmissions. Safe in wet or dry sumps. Recommended for manual or automatic clutches.

Product Code: AFF

PRODUCT DESCRIPTION
AMSOIL Formula 4-Stroke Synthetic Motor Oil is specially formulated for four-stroke recreational motors, including ATVs, Snowmobiles, outboard motors and motorcycles. It may also be used in cars and trucks. Its broad viscosity range makes it excellent for use in both hot and cold temperature extremes.

Resists High Temperature Vaporization
Conventional motor oils tend to vaporize and lose weight in high temperature conditions, contributing to poor oil circulation, reduction in fuel efficiency and excessive emissions and engine wear. AMSOIL Formula 4-Stroke Synthetic Motor Oil is highly resistant to evaporation. While conventional petroleum oils thicken due to evaporation, AMSOIL Formula 4-Stroke Synthetic Motor Oil maintains its viscosity in high temperature service. The superior evaporation resistance of AMSOIL Formula 4-Stroke Synthetic Motor Oil keeps engine wear, oil consumption and emissions to a minimum, while keeping oil circulation efficient and fuel economy high.

Friction Modifier Free
AMSOIL Formula 4-Stroke Synthetic Motor Oil contains no friction modifiers, making it ideal for ATV, outboard motor and motorcycle engines. The friction modifier free formulation of AMSOIL 4-Stroke ensures transmission (manual or automatic) and clutch compatibility and prevents slip.

Performance Formulated
AMSOIL Formula 4-Stroke Synthetic Motor Oil contains a robust dispersant/detergent package, making it ideal for use in high-stress four-cycle engines. The dispersant/detergent additive package effectively suspends harmful combustion by-products and prevents deposits, keeping AMSOIL Formula 4-Stroke clean and serviceable.

High-temperature operations often lead to the thermal degradation and oxidation of conventional oils, leading to the formation of deposits, sludge and varnish. The superior oxidative and thermal stability of AMSOIL Formula 4-Stroke Synthetic Motor Oil inhibits the formation of varnish, deposits and sludge so equipment runs clean in high-stress, high temperature operations.

Temperature and Performance
AMSOIL Formula 4-Stroke Synthetic Motor Oil has a broad viscosity range, making it excellent for use in both hot and cold temperature extremes. As an SAE 40 weight motor oil, AMSOIL Formula 4-Stroke provides superior protection for hot operating, hard working motors, while its SAE 0W rating ensures easy cranking, excellent cold weather starting and quick post-startup protection.

Copper Corrosion, Rust and Foam Inhibition
AMSOIL Formula 4-Stroke Synthetic Motor Oil protects equipment from copper corrosion and rust, even during equipment storage. AMSOIL Formula 4-Stroke Synthetic Motor Oil does not foam in service, protecting equipment from the metal-to-metal contact and wear that occurs with use of foam-filled fluids.

TYPICAL PHYSICAL PROPERTIES
AMSOIL FORMULA 4-STROKE SYNTHETIC MOTOR OIL (AFF) SAE 0W-40
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)
14.20
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)
73.93
Viscosity Index (ASTM D-2270)
201
CCS Viscosity, cP @ (°C) (ASTM D2602)
5691
Flash Point °C (°F) (ASTM D 92)
228 (442)
Pour Point °C (°F) (ASTM D 97)
-51 (-60)
Noack Volatility, % weight loss (g/100g) (ASTM D-5800)
11.63%
Four Ball Wear Test (ASTM D 4172 @ 40 kgf, 150°C, 1800 rpm, 1 hour, Scar in mm)
0.40
Total Base Number
8.91

Applications and Recommendations
AMSOIL Formula 4-Stroke Synthetic Motor Oil may be used in all applications specifying 0W-40, 5W-30, 10W-30 and 10W-40 viscosity grades and is recommended for applications specifying the following:

• API SJ, SH, SG, SF, CD, CF
• JASO MA

Use in Yamaha®, Suzuki®, Honda®, Mercury®, Kawasaki®, Arctic Cat®, Polaris®, Nissan® and Bombardier® motors and transmissions. Safe in wet or dry sumps. Recommended for manual or automatic clutches.

Compatibility
AMSOIL Formula 4-Stroke Synthetic Motor Oil is compatible with other four-stroke fluids. However, a mixture of AMSOIL Formula 4-Stroke Synthetic Motor Oil and another oil may offer a shorter service life than pure AMSOIL Formula 4-Stroke Synthetic Motor Oil.

AMSOIL Formula 4-Stroke Synthetic Motor Oil is compatible with and recommended for use with clutch plates in ATV’s and motorcycle transmissions.

Installation
Change AMSOIL Formula 4-Stroke Synthetic Motor Oil according to manufacturer's recommendations, without oil filtration. With oil filtration (AMSOIL EAO Filter), up to 2 times longer than manufacturer's recommendations or 6 months, whichever comes first. If a Hastings or other filter is used, filter should be changed at manufacturer's recommendations.

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Southwest Florida AMSOIL dealer

Robert Riley
Authorized AMSOIL Independent dealer
Amsoil Harvard, Massachusetts
Telephone (888) OIL-4CAR
Click here to send email

Customer Tesimonials:

Satisfied Customers Praise AMSOIL

"We have a $15,000 motor to protect. That's why we use AMSOIL."
- Brian Cardiff,
Hawaiian Punch Monster Truck Owner

"I own NASCAR race teams and a car dealership in Colorado Springs. I have been a long time user of AMSOIL products in both enterprises. AMSOIL synthetic lubricants are required for my late model race cars and the tow vehicles hauling these cars. My service department at the dealership is required to feature and use AMSOIL products. From dependable, high speed lubricants to hand cleaner, we rely on AMSOIL to get the job done"
-Mike Bonicelli,
Bonicelli Racing Enterprises

Where you can use Amsoil
Performance & Competition:
Performance vehiclesneed performance oil. AMSOIL Synthetic Racing Oil reduces heat and wear whil providing quicker engine response and increased horsepower
AMSOIL stock car racing
AMSOIL keeps classic cars running new
 Custom & Show :
Vehicles stored for long periods of otime need rust and corrosion protection. AMSOIL motor oils and fuel stabalizer protects against harmful conditions to preserve irreplaceable engines
Snowmobiles & Personal Watercraft :
AMSOIL Series 2000 2-Cycle Racing Oil maintains a higher level of lubricity than 2-cycle petroleum oill, while dramatically reducing friction and wear.
AMSOIL keeps snowmobiles running like new
AMSOIL keeps campers and motorhomes running like new Motorhomes & RVs:
Motorhomes and RVs operate in the widest range of environments and temperature extremes. AMSOIL Motor Oils provide dependable starts, maximum power amd increased fuel economy.
4-Wheel Drives:
AMSOIL Gear Lubes and motor oils provide the hard pounding protection needed by 4x4s. Even under the most extremeconditions and temperatures, AMSOIL lubricants perform and protect
AMSOIL keeps your SUV running great
 Family & Personal:
AMSOIL synthetic lubricants and filtration products provide unsurpassed, long-lasting service and protection for cars, trucks and other family fleet equipment.