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 expectancy 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 Costs
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
Improve Fuel Economy
Formulated with friction modifiers, AMSOIL XL Synthetic Motor Oils are fuel-efficient oils that reduce
friction-related energy loss. They provide better fuel economy compared to conventional, non-fuel-efficient
Maintain Low Emissions
AMSOIL XL Synthetic Motor Oils are friendly toward modern emissions control systems, promoting proper
operation of catalytic converters for optimum service life and low exhaust emissions.
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. They promote clean operation for longer-lasting,
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 XL Synthetic Motor Oils are excellent for use in all types of gasoline-fueled vehicles. They are
recommended for all domestic and foreign vehicles requiring any of the listed performance
XLM 5W-20 Synthetic Motor Oil