Wolcott, CT
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AMSOIL Z-ROD® Synthetic Oil Keeps Classic Vehicles Street-Ready

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.

Zinc levels have been significantly reduced in the more recent API (American Petroleum Institute) service designations. What was once 1200 ppm is now 600-800 ppm zinc and phosphorous.This is fine for modern automobile engines but may not provide enough wear protection for classic cars and performance cars with modified engines that use flat tappet cam designs. AMSOIL’s Z Rod Synthetic Motor Oil, available in 10W30 and 20W50 viscosity, is a high zinc and phosphorus formulation. Z Rod also features proprietary corrosion inhibitors to protect against rust and corrosion while the engine is in 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.

Z-ROD® 10W-30 Synthetic Motor Oil

Z-ROD® 20W-50 Synthetic Motor Oil