Performance Products for Recreational 4-Stroke Vehicles

AMSOIL Formula 4-Stroke® Synthetic Motor Oils

Performance Products for Recreational 4-Stroke Vehicles

Formula 4-Stroke 0W-40 Power Sports Synthetic Motor Oil

AMSOIL Formula 4-Stroke 0W-40 Power Sports Synthetic Motor Oil (AFF) is specially formulated for ATVs, UTVs, snowmobiles and other powersports applications. Its broad viscosity range and wax-free formulation make it excellent for use in both hot and cold temperature extremes. As an SAE 40-weight motor oil, it provides outstanding protection for hot-operating engines, while its 0W rating and -60°F pour point ensure easy cranking, excellent cold-weather starting and quick post-startup protection. Formula 4-Stroke Power Sports is an extreme-temperature lubricant that provides outstanding performance in high-performance, recreational or work/utility engines.

• Superior protection for engines and transmissions
• Resists oxidation and oil vaporization
• Promotes cool engine operation
• Outstanding corrosion protection
• Resists foam

Formula 4-Stroke 10W-30 & 10W-40 Marine Synthetic Motor Oils (NMMA FC-W certified)

AMSOIL Formula 4-Stroke 10W-30 (WCT) and 10W-40 (WCF) Marine Synthetic Motor Oils are premium-quality synthetic formulations engineered for the harsh operating conditions of gasoline-fueled four-stroke outboard, inboard, inboard/outboard (I/O) and personal watercraft motors, effectively withstanding the intense mechanical action of continuous, high-RPM operation to deliver superior viscosity protection. Formula 4-Stroke Marine Synthetic Motor Oils excel in both high-horsepower applications and all-day trolling conditions, and they are specially fortified with a heavy treatment of advanced additives that protect motors against wear, rust and deposits.

• Exceed NMMA FC-W specification requirements
• Outstanding shear stability
• Maximum wear protection
• Excellent viscosity stability
• Superior corrosion protection

Formula 4-Stroke 10W-30/SAE 30 Synthetic Small Engine Oil

AMSOIL Formula 4-Stroke 10W-30/SAE 30 Synthetic Small Engine Oil (ASE) is a robust formulation designed for the severe-service operation of small engines. It has a -38°F pour point and qualifies for SAE 10W, making it an all-season, multi-grade lubricant with a wide operating temperature range. As an SAE 30-weight motor oil, it provides outstanding protection for hot-operating engines. Formula 4-Stroke Small Engine Oil is a commercial-grade lubricant that helps improve productivity and reduce maintenance costs through superior engine protection. Also perfect for ATVs, scooters and other applications calling for a SAE 30 or 10W-30 oil.

• Exceeds both 10W-30 and SAE 30 viscosity requirements
• Resists oxidation and oil vaporization
• Superior protection for engines and transmissions
• Wet-clutch compatible
• Long-life formulation

Formula 4-Stroke 10W-40 Synthetic Scooter Oil

AMSOIL Formula 4-Stroke 10W-40 Synthetic Scooter Oil (ASO) is formulated specifically to meet the special needs of today’s high-tech air and water-cooled four-stroke motorized scooters, offering excellent wear protection and friction reduction for longer equipment life and cooler operating temperatures. Formula 4-Stroke Synthetic Scooter Oil delivers exceptional shear stability, ensuring consistent viscosity protection and providing additional protection for transmissions and gear boxes.

• Superior wear protection
• Cool engine operation
• Exceptional shear stability
• Improved fuel economy
• Wet-clutch compatible AFF WCF WCT ASO ASE

Shock Therapy Suspension Fluids

AMSOIL Shock Therapy Suspension Fluids are recommended for a wide range of temperatures in the suspension systems of racing and recreational-use vehicles.

AMSOIL Shock Therapy Suspension Fluids friction modifiers to reduce the energy loss (STL, STM) are formulated to make suspension caused by friction, while anti-wear agents systems more predictable. The base stocks of are added to protect suspensions from AMSOIL Shock Therapy Suspension Fluids premature wear. have inherently high viscosity indices that AMSOIL STL #5 is recommended for applieffectively maintain their viscosities, while their cations that demand quick rebounds under anti-foam agents reduce aeration and foam. extreme temperatures.

The constant friction within a shock body AMSOIL STM #10 is recommended for applidecreases suspension performance. AMSOIL cations that require more dampening and Shock Therapy Suspension Fluids contain slower rebounds.

AMSOIL Ea Motorcycle Oil Filters

AMSOIL Ea Motorcycle Oil Filters (EaOM) feature full-synthetic nanofiber technology, providing superior protection for motorcycles, ATVs and 4-stroke personal watercraft, snowmobiles and outboard motors. Ea Motorcycle Oil Filters last longer, stop smaller dirt particles and offer less restriction, extending equipment and filter life and improving performance. Ea Motorcycle Oil Filters are fluted for easy removal from motorcycles. Available in black or chrome.

AMSOIL Ea Motorcycle Air Filters

AMSOIL Ea Motorcycle Air Filters (EaAM) replace OEM filters from Harley-Davidson and Honda and fit S&S and Baron filter housings, incorporating nanofiber technology that offers superior efficiency, air flow and capacity for extended equipment and filter life and enhanced performance. Ea Motorcycle Air Filters are cleanable and remain serviceable for up to four years, saving money on filter costs. Cleaning of Ea Motorcycle Filters with a shop vacuum or low-pressure shop air is recommended every year or according to operating conditions.

AMSOIL Twin Air Filters

AMSOIL offers premium Twin Air Filters for dirt bike and ATV applications. Twin Air Filters are constructed of two layers of open-pore foam to provide maximum filtration and superior air flow. Exclusively formulated adhesive withstands repeated cleanings. Wash filters and reapply filter oil for years of trouble-free miles.

Liquid Power Filter Oil

Starts thin for a deep, even penetration, then dries to an even coating. This high-tack shield traps dirt, grit and dust. Available in spray or liquid form.

Liquid BIO Power Filter Oil

Biodegradable air filter oil is the first biodegradable air filter oil that works in all riding conditions. Prevents dirt, dust and water from entering carburetors. Its alcohol base allows easy, even penetration, then dissipates quickly to form a super-sticky, dirt-grabbing shield. Available in spray or liquid form.

Liquid Dirt Remover

Formulated to quickly cut through Liquid Power, loosen dirt and flush filters clean. Will not harden or damage filter foam. Available in spray or liquid form.

Liquid BIO Dirt Remover

Biodegradable air filter cleaner can be used with a washing machine or when washing by hand in a bucket. Granular water-soluble cleaner can go right down the drain without clogging or harming the environment.

Spray Contact Cleaner

Designed to clean the air box and surrounding areas. Quickly removes excess dirt and grime.

Twin Air System

Comes with everything needed to clean and care for Twin Air Filters, including cleaning tub, oiling tub, Liquid Dirt Remover, Liquid Power Filter Oil, Contact Cleaner and rubber gloves. Twin Air BIO System includes cleaning tub, oiling tub, BIO Dirt Remover, Liquid BIO Power Filter Oil, Contact Cleaner and rubber gloves.

More AMSOIL Products for Four-Stroke Engines

Series 2000 Synthetic Chaincase Lubricant (TCC)

Provides superior protection and performance for enclosed chains. Ideal for snowmobiles, ATVs and general equipment. Extreme-Pressure additives provide extra wear protection. Extends chain life, repels water and inhibits rust, oxidation and foam. Superior low-temperature starting, performance and protection.

Synthetic Water Resistant Grease (GWR)

Ultimate protection for hard-driven equipment frequently exposed to water. Effectively resists water washout and degradation while sealing metal surfaces against rust and corrosion. Performs over a wide temperature range, effectively reducing friction and wear.

Engine Fogging Oil

Superior film retention provides stored equipment with long-term protection against corrosion and dry starts, extending engine life and reducing operating expenses. Its aerosol spray formulation offers easy and clean application, while reaching more components and offering complete distribution of the oil, something especially beneficial in applications with horizontal cylinder orientation, such as outboard motors.

Universal Synthetic Marine Gear Lube (AGM)

Provides true marine gear performance, resists foaming and retains extreme-pressure qualities even when subjected to 10 percent water contamination. For use in outboard lower units, sterndrives, V-drives, bow and tunnel thrusters and marine transmissions requiring a SAE 75W-90 or 80W-90 meeting either GL-4 or GL-5 performance standards. Also excellent for ATVs exposed to wet conditions.

Gasoline Stabilizer (AST)

Keeps fuel from deteriorating during storage. Reduces the oxidation process to help prevent varnish and gum build-up. Recommended for all motorized vehicles and equipment.