- Engineered for classic vehicles
- Helps retain horsepower
- High-zinc formula protects flat-tappet cams, lifters, rockers & other critical components
- Protects against rust during storage
Product Overview
Specially engineered for classic cars. Contains high levels of ZDDP, top-tier additives and rust inhibitors to protect your passion, deliver maximum performance and keep your classic engine free of rust and corrosion in storage.
PROTECTS FLAT-TAPPET CAMS
- 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.
HELPS PREVENT RUST & CORROSION
- Formulated 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.
Z-ROD Delivers Superior Rust Protection
In industry standard testing, AMSOIL Z-ROD completely prevented rust formation while a leading competitor did not.A
ᴬ Based upon in-house testing of AMSOIL Z-ROD 10W-40 and a leading competitor obtained on 7/25/2019 in ASTM D1748-10.
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Product information checked: September 2026. Product formulations, specifications, applications, availability and published claims can change.
For the latest official information, consult the AMSOIL Corproate Website.
