Stock and modified small-displacement racing engines are subjected to extreme
heat and elevated rpm that literally tear apart inferior oils. Viscosity loss and
oil foaming can result, inviting wear and catastrophic engine failure. AMSOIL
combined its extensive experience formulating high-performance synthetic
lubricants with the engine-building expertise of Briggs & Stratton® to develop an
oil specifically designed to help racers elicit the most horsepower and longest
life from their engines. Synthetic 4T Racing Oil is proven in the lab and on the
track to provide increased performance in kart, junior drag, quarter midget and
other racing applications. It offers benefits other oils simply can’t match.
Formulated to Reduce Heat
Synthetic 4T Racing Oil does not contain impurities inherent to conventional oils,
allowing it to naturally resist the elevated heat common to high-performance racing
engines, including air-cooled models. Its increased thermal stability helps reduce
operating temperatures and guards against the formation of harmful sludge and
deposits, promoting optimum engine performance and life.
Maximum Horsepower & Protection
Synthetic 4T Racing Oil is engineered with specialized friction modifiers and
advanced additives that reduce energy loss due to friction while providing strong
anti-wear properties. As a result, Synthetic 4T Racing Oil combines the horsepower
of a lite oil with the wear protection of a heavier oil.
Contains Powerful Foam Inhibitors
The churning action inside high-rpm engines introduces air into the oil, which causes
lesser oils to foam. As air bubbles are drawn between engine parts, they collapse,
allowing metal-to-metal contact and wear. Synthetic 4T Racing Oil is engineered with
powerful anti-foam agents. It resists foam to form a durable lubricating film between
Synthetic 4T Racing Oil contains corrosion inhibitors to guard against the formation
of corrosion between races and during longer periods of storage.
- Tested and Validated by Briggs & Stratton and AMSOIL
- Combines the protection of a heavier oil with the performance of a lite oil
- Reduces harmful heat
- Inhibits foam
- Resists corrosion
Briggs & Stratton Synthetic 4T Racing Oil is formulated
specifically for stock and modified small-displacement
air-cooled racing engines used in kart, junior drag, quarter
midget and other racing applications. It is recommended
for any four-stroke air-cooled competition engine, whether
single- or multi-cylinder, splash- or pressure-lubricated,
including Briggs & Stratton V-Twin engines requiring the listed
viscosity and lubricating properties. Synthetic 4T Racing Oil
is recommended for alcohol- and gasoline-fueled engines.
Compatible with mineral oils.
Do not mix with polyalkylene glycol (PAG) oils when
converting to Synthetic 4T Racing Oil. Drain existing oil and
refill with Synthetic 4T Racing Oil. Then operate engine at
idle/low speed for 2-3 minutes. Drain oil and refill with fresh
Synthetic 4T Racing Oil.
Follow the original equipment manufacturer (OEM) or engine
HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended
application and according to the recommendations in the Material
Safety Data Sheet (MSDS). An MSDS is available via the Internet at www.amsoil.com
or upon request at (715) 392-7101. Keep Out of Reach of Children. Don’t pollute.
Return used oil to collection centers.
For warranty information, visit www.amsoil.com/warranty.aspx.