Amsoil Authorized Dealer
Jari P Marjanen
AMSOIL Authorized Dealer Arizona
Jari P Marjanen
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AMSOIL Z-ROD® 10W-30 Synthetic Motor Oil

AMSOIL Z-ROD® 10W-30 Synthetic Motor Oil
AMSOIL Z-ROD® 10W-30 Synthetic Motor Oil
Product Details
AMSOIL Z-ROD Synthetic Motor Oil is specially engineered for classic and high-performance vehicles. A high-zinc formulation to prevent wear on flat-tappet camshafts and other critical engine components, along with a proprietary blend of rust and corrosion inhibitors for added protection during long-term storage.
Product Description
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 components, 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.

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.

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 like 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.
Rust test
Provides Long-Term Protection from Rust & Corrosion

AMSOIL Z-ROD Synthetic Motor Oil is formulated with a unique blend of rust and corrosion inhibitors to ensure maximum protection during long-term storage. To prove its effectiveness, AMSOIL submitted Z-ROD Synthetic Motor Oil to the Standard Test Method for Rust Protection in the Humidity Cabinet (ASTM D-1748). This test evaluates the rust-preventative properties of oil under high-humidity conditions, similar 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 oxidation after 192 hours, while the coupon treated with a leading competitor’s product failed the test after 24 hours.

APPLICATIONS
AMSOIL Z-ROD Synthetic Motor Oil is recommended for older or modified engines requiring either 10W-30 or 20W-50 motor oil. Z-ROD Synthetic Motor Oil meets API SL and earlier specifications, allowing for increased levels of anti-wear additives. ZDDP levels in Z-ROD Synthetic Motor Oil exceed the limits of API SM and newer specifications.

COMPATIBILITY
AMSOIL Z-ROD Synthetic Motor Oils are compatible with conventional and other synthetic motor oils. Mixing AMSOIL Z-ROD Synthetic Motor Oils with other oils, however, will shorten the oil’s life expectancy and reduce the performance benefits. Aftermarket oil additives are not recommended for use with AMSOIL Z-ROD Synthetic Motor Oils.

SERVICE LIFE
Because engines in classic cars, hot rods and other performance 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 one year, whichever comes first. In heavily modified engines (e.g. forced induction, nitrous) the maximum drain interval should not exceed 3,000 miles or one year, whichever comes first.
Product Size
Code Package Size Unit of Measure Product
ZRTQT (ZRTQT-EA) Quart Each Z-ROD® 10W-30 Synthetic Motor Oil
ZRTQT (ZRTQT-CA) Quart Case of 12 Z-ROD® 10W-30 Synthetic Motor Oil
Technical Information
Extra Information
Why is it important to protect flat‐tappet camshafts, lifters and rocker arms from wear?
Many classic cars, hot rods and earlier model high‐performance vehicles are modified with custom flat‐tappet camshafts, lifters and rocker arms for increased performance. High levels of additives are required to protect these critical high‐wear areas because they are splash‐lubricated, unlike other areas that are pressure‐lubricated. AMSOIL Z‐ROD Motor Oil contains a unique formulation of detergents and ZDDP which keeps engine components clean and protects these high‐wear areas.
How does AMSOIL Synthetic Z‐ROD Motor Oil test against competitors?
AMSOIL Z‐ROD Motor Oil was tested for rust protection using the ASTM D‐1748 Standard Test Method for Rust Protection. This test method evaluates the rust‐preventive properties of oil under conditions of high humidity, representative of covered vehicles in damp garages. The metal coupon treated with AMSOIL Z-ROD Synthetic Motor Oil showed no signs of oxidation after 192 hours, while the coupon treated with a leading competitor’s product failed the test after 24 hours.
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