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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.
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.
In industry standard testing, AMSOIL Z-ROD completely prevented rust formation while a leading competitor did not.
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.
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.
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.
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.
• AMSOIL Oil Filters stop smaller particles, flow more oil and last longer than regular ilters. For best performance, use AMSOIL Oil Filters.
Like our products, the AMSOIL Limited Warranty is built with an extra measure of protection. While some other oil companies guarantee their products only until you reach a specified mileage, we don't place restrictions on our warranty coverage based on total vehicle miles.
We stand behind our products for as long as you use them!
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