Modern Technology for Classic Cars
AMSOIL Z-ROD Synthetic Motor Oil is specially engineered for classic and high-performance vehicles.
It features a high-zinc formulation to prevent wear on flat-tappet camshafts and other critical
engine compo- nents, along with a proprietary blend of rust and corrosion inhibitors for added
protection during long-term storage. Z-ROD Synthetic Motor Oil
is designed to perform on the street and protect during storage.
Formulated with high levels of ZDDP to protect flat-tappet cams, lifters, rockers and other areas susceptible to wear.
High-zinc, high-phosphorus formulation provides the extra wear protection critical splash-lubricated components require.
Fights wear to help prevent compression loss for maximum horsepower.
ormulated with a unique blend of rust and corrosion inhibitors to ensure maximum protection during long-term storage.
Prevented rust and corrosion in industry standard testing (ASTM D1748-10) for excellent engine protection.
“In industry standard testing, AMSOIL Z-ROD completely prevented rust formation while a leading competitor did not.”
Z-ROD Delivers Superior Rust Protection
AMSOIL
Protects Flat-Tappet Cams
The lifters and cam lobes on flat-tappet camshafts common to classic and high-
performance vehicles slide rapidly against one another, producing high friction and heat. The
friction between the two components can eventually wear down the
cam and affect valve operation, ultimately resulting in lost engine power and reduced efficiency.
In addition, these areas are splash-lubricated rather than pressure- lubricated like other areas of
the engine, which adds extra strain on anti-wear additives
such as the zinc and phosphorus in zinc dialkyldithiophosphate (ZDDP).
AMSOIL Z-ROD Synthetic Motor Oil is formulated with high levels of ZDDP to protect flat-tappet
cams, lifters, rockers and other areas susceptible to wear. Its high-zinc, high-phosphorus
formulation provides the extra wear protection these critical splash-
lubricated components require.
Provides Long-Term Rust & Corrosion Protection
Z-ROD Synthetic Motor Oil is formulated with a unique blend of rust and corrosion in- hibitors to
ensure maximum protection during long-term storage. To prove its effective- ness, AMSOIL submitted
Z-ROD Synthetic Motor Oil to the Standard Test Method for Rust Protection by Metal Preservatives in
the Humidity Cabinet (ASTM D1748-10). This test evaluates the rust-preventive properties of oil
under high-humidity conditions, simi- lar to those faced by a covered hot rod in a damp garage. The
metal coupon treated
with AMSOIL Z-ROD Synthetic Motor Oil showed no signs of rust.
APPLICATIONS
Use Z-ROD Synthetic Motor Oil in engines that require either
10W-30, 10W-40 or 20W-50 motor oil and an API SL or earlier specification. ZDDP levels in Z-ROD
Synthetic Motor Oil exceed the limits of API SM and newer specifications.
COMPATIBILITY
AMSOIL Z-ROD Synthetic Motor Oil is compatible with
conventional and other synthetic motor oils. Mixing Z-ROD Syn- thetic Motor Oil with other oils,
however, will shorten the oil’s life
expectancy and reduce its performance benefits.
Z-ROD Synthetic Motor Oil is safe for automotive seals. After-market oil additives are not recommended for use with Z-ROD.
SERVICE LIFE
Because engines in classic cars, hot rods and other perfor-
mance vehicles are generally modified, a universal oil drain interval recommendation for these
applications cannot be given. Responsibility for determining the drain interval duration rests with
the owner. As a general service guideline, the maximum drain interval for Z-ROD Synthetic Motor Oil
should not exceed
5,000 miles or two years, whichever comes first.
Get the Facts About Your Rights
AMSOIL Guarantee
AMSOIL products are Warranty Secure, keeping your factory warranty intact. They are high-performance replacements for vehicle/equipment manufacturer-branded products.
