Classic Car Flat Tappet Oil

Your Classic Car or High Performance muscle car needs the right oil so you don't damage the camshaft and lifters. Metal to metal contact without ZDDP, Zinc Phosphate, will ruin your engine. Amsoil offers two formulations that will help protect your investment.

AMSOIL 10W-40 High Performance Synthetic Motor Oil
SAE 20W-50 Synthetic High Performance Synthetic Motor Oil

AMSOIL Synthetic 10W-40 and 20W-50 Premium
Protection Motor Oils are specially formulated to provide
superior protection and performance in a wide variety of
demanding applications. By incorporating high-quality
synthetic base stocks and a superior high-zinc additive
package, AMSOIL Premium Protection Oils exceed the
needs of large and small gasoline or diesel engines in
cars, motorcycles, trucks, motor homes, maintenance
equipment, heavy equipment, street rods and marine
applications. They are ideal for high-mileage vehicles,
vehicles with flat-tappet cams and high-stress vehicles
subject to hot temperatures, heavy hauling, trailer pulling
or off-road use. AMSOIL Premium Protection Oils resist
oxidation, neutralize acids, inhibit corrosion, reduce wear
and protect against deposits. They provide the extra
anti-wear protection required by engines with flat-tappet
cams and high-tension valve springs. AMSOIL Synthetic
10W-40 and 20W-50 Premium Protection Motor Oils
offer flexibility and performance beyond conventional
oils for convenience and trouble-free operation.

AMSOIL Synthetic 10W-40 and 20W-50 Premium
Protection Motor Oils are high-viscosity oils engineered
to protect against metal-to-metal contact. They resist viscosity
shear and are formulated with a heavy treatment
of zinc and other anti-wear additives for excellent protection
of gears, bearings, cam lobes and other highpressure
components in engines and transmissions.
AMSOIL Premium Protection Synthetic Motor Oils help
extend engine life.

APPLICATIONS
AMSOIL Synthetic 10W-40 and 20W-50 Premium Protection
Motor Oils are multi-use, premium synthetic lubricants for
applications that require or benefit from a higher-viscosity
oil. They are recommended for air- and liquid-cooled, large
or small gasoline and diesel engines, transmissions and
chaincase applications where 10W-40 or 20W-50 oils are
required with any of the following specifications:
• API SL/CF, CI-4 Plus
• API SJ, SH, SG…
• ISO-L-EMA
• JASO MA (Motorcycle)
• Cummins 20071/20072/20076/20077

AMO 10W40

ARO 10W50