AMSOIL Formula 4 Stroke
0w40 Synthetic Oil for Power Sports

Superior Wear Protection

AMSOIL Formula 4 Stroke 0w40 Synthetic Oil is formulated with high levels of anti-wear additives that provide excellent protection for pistons, bearings and gears in transmission containing units, while its shear stable, SAE 40 viscosity delivers a thick lubricating film for an extra margin of protection in hard-working engines.

Controls Oil Foam

AMSOIL Formula 4 Stroke 0w40 Synthetic Oil does not foam in service, due to its anti-foam additives. This protects equipment from metal-to-metal contact and wear that occurs with the use of foam-filled fluids. Churning occurs in high RPM engines, which can cause oil to foam. Foam depletes an oil's lubricating abilities and increases heat and wear. AMSOIL Formula 4 Stroke 0w40 Synthetic Oil controls oil foam, promoting cooler engine operation and reduced wear.

Wet Clutch Compatible — JASO MA, MA2 Oil

AMSOIL Formula 4 Stroke 0w40 Synthetic Oil contains no friction modifiers, making it ideal for both 2 and 4 stroke ATV transmissions. The friction-modifier-free formulation is designed to prevent clutch slippage, delivering maximum torque and power to the wheels — a critical feature for towing or high-horsepower engines. AMSOIL Formula 4 Stroke 0w40 Synthetic Oil meets the frictional requirements of JASO MA, MA2 and ISO-L-EMA2.

Improves Fuel Economy

AMSOIL Formula 4 Stroke 0w40 Synthetic Oil effectively resists heat and oxygen, the two elements that can cause oil to vaporize and form sludge. AMSOIL Formula 4 Stroke 0w40 Synthetic Oil controls oil thickening for good fuel economy. It also controls oil consumption, minimizes exhaust emissions and keeps engines deposit-free for peak operating efficiency.

Keeps Engines Running Clean

AMSOIL Formula 4 Stroke 0w40 Synthetic Oil contains robust dispersant/detergent additives, making it ideal for use in high-stress 4 cycle engines. The dispersant/detergent additive package effectively neutralizes the high levels of acids and combustion by-products prone to small engines, keeping your engine clean and keeping AMSOIL Formula 4 Stroke 0w40 Synthetic Oil clean and serviceable.

Superior Engine Rust Prevention

AMSOIL Formula 4 Stroke 0w40 Synthetic Oil is fortified with superior anti-rust additives for outstanding engine rust prevention, which is especially important during seasonal equipment storage and infrequently used equipment.

All Season Oil

AMSOIL Formula 4 Stroke 0w40 Synthetic Oil's broad viscosity range and wax-free formulation makes it excellent for use in both hot and cold weather conditions.

Service Life

Follow the equipment manufacturer's recommended oil drain intervals.

Applications

AMSOIL Formula 4 Stroke 0w40 Synthetic Oil is recommended for 4 stroke engines and transmissions on 2 and 4 stroke powered applications. It is an all-climate, all-season oil that replaces 0w30, 0w40, 5w30, 10w30 and 10w40 oils for ATVs, snowmobiles and other power sports equipment. Manufacturers include Arctic Cat, Can-Am (Bombardier), Honda, Kawasaki, Polaris, Ski-Doo, Suzuki and Yamaha.

Performance Specifications

AMSOIL Formula 4 Stroke 0w40 Synthetic Oil meets or exceeds the following performance test requirements and may be used in motors requiring oils meeting these specifications:

• API SL/CF, SJ, SH, SG
• JASO MA, MA2 (Motorcycle Wet Clutch)
• ISO-L-EMA2

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