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Synthetic lubricants are engineered to form a pure lubricant. AMSOIL oil & filter applications include cars, trucks, motorcycles, recreational vehicles, boats, heavy industrial & construction equip.
AMSOIL Sales Direct Dlr. USA, Canada, Puerto Rico

General Info

AMSOIL XL Extended Life Synthetic Motor Oils provide better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils. Formulated with extended-drain boost technology, AMSOIL XL Synthetic Motor Oils provide superior performance for up to 10,000-miles/six months, or longer when recommended in owner's manuals or indicated by electronic oil life monitoring systems.

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.

Extended-Drain Boost Technology

During normal engine operation, the combustion process creates acidic by-products that can lead to internal component corrosion and a reduction in the life expectance of the engine oil and engine itself. Formulated with extended-drain boost technology, AMSOIL XL Synthetic Motor Oils employ high-quality synthetic base stocks and a unique additive chemistry to neutralize acids longer than conventional oils. The extra additive package effectively raises the Total Base Number (TBN), a measure of an oil's useful service life, and provides superior protection and performance throughout the entire drain interval.

Lower Maintenance Cost

Cost-conscious motorists, business owners and fleet managers benefit from the extended drain intervals and wear protection of AMSOIL XL Synthetic Motor Oils. While frequent oil changes are expensive, time consuming and inconvenient, longer drain intervals reduce costs and environmental impact, while increased wear control can reduce maintenance costs. With AMSOIL XL Synthetic Motor Oils, motorists realize the convenience and cost savings of extended drain intervals while also providing vehicles with maximum protection.

Improve Fuel Economy

Formulated with friction modifiers, AMSOIL XL Synthetic Motor Oils are fuel efficient oils that reduce friction-related energy loss.

Maintain Low Emissions

AMSOIL XL Synthetic Motor Oils are friendly toward modern emissions control systems.

Hot- And Cold-Engine Protection

AMSOIL XL Synthetic Motor Oils are multi-viscosity formulations. Compared to conventional oils, they better resist the effects of thermal breakdown, including evaporation and viscosity loss, while remaining fluid in cold temperatures for easier cold starts and fast start-up circulation.

Keep Engines Clean

Fortified with detergent and dispersant additives, AMSOIL XL Synthetic Motor Oils are engineered to resist sludge and carbon deposits better than conventional oils.

Bid Appropriate

AMSOIL XL Synthetic Motor Oils fulfill the requirements of most public and private purchasing bids. They are cost effective, making them ideal where synthetic motor oil is specified.


AMSOIL Synthetic Motor Oils are excellent for use in all types of gasoline + diesel fueled vehicles.


AMSOIL formulates synthetic lubricants for all types of engine and gear applications, including those for specialized vehicles and severe operating conditions. AMSOIL has sophisticated fuel additives, filtration systems and other companion products that supplement and extend lubricant performance. All are distributed by Hill Syntec Distributing. AMSOIL's complete line of quality products is recognized by countless private motorists, fleet managers and industrial administrators as the best and most cost-effective choice for increasing engine performance, reducing maintenance and prolonging vehicle and equipment life.


AMSOIL Certified T-1 Dealer

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