AMSOIL Z-ROD® 10W-30 100% Synthetic Motor Oil

AMSOIL Z-ROD® 10W-30 Synthetic Motor Oil is highly recommended for classic and high-performance vehicles. This oil is formulated with high levels of Zinc and Phosphorous (ZDDP), which are essential for protecting flat-tappet camshafts, lifters, and other critical engine components. Users have reported that it provides excellent protection for engines with solid lifters, like the 1969 Chevy Nova with a 396 CID engine, making it an ideal choice for muscle cars and vintage vehicles​​​​. The product's high-zinc formulation is crucial because many modern motor oils do not contain enough ZDDP to adequately protect older engine designs. Z-Rod's advanced synthetic formulation helps prevent wear on engine components and maintains performance. It also includes a proprietary blend of rust and corrosion inhibitors, which is beneficial for the long-term storage of classic vehicles.

4.9
star rating from
108
total reviews

This AMSOIL product is available in:

Individual Quart Bottles
Cases of 12 Quart Bottles
Buy Now
Product Code:

ZRTQT-EA

AMSOIL AMSOIL Z-ROD® 10W-30 100% Synthetic Motor Oil Description

AMSOIL Z-ROD® 10W-30 Synthetic Motor Oil is highly recommended for classic and high-performance vehicles. This oil is formulated with high levels of Zinc and Phosphorous (ZDDP), which are essential for protecting flat-tappet camshafts, lifters, and other critical engine components. Users have reported that it provides excellent protection for engines with solid lifters, like the 1969 Chevy Nova with a 396 CID engine, making it an ideal choice for muscle cars and vintage vehicles​​​​. The product's high-zinc formulation is crucial because many modern motor oils do not contain enough ZDDP to adequately protect older engine designs. Z-Rod's advanced synthetic formulation helps prevent wear on engine components and maintains performance. It also includes a proprietary blend of rust and corrosion inhibitors, which is beneficial for the long-term storage of classic vehicles.

AMSOIL Z-ROD® Synthetic Motor Oil

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 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.

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 Protection from Rust & Corrosion

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 by Metal Preservatives in the Humidity Cabinet (ASTM D1748-10). This test evaluates the rust-preventive 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 rust.

¹Based upon in-house testing of AMSOIL Z-ROD 10W-40 and a leading competitor obtained on 7/25/2019 in ASTM D1748-10.

AMSOIL Z-ROD®️ 10W-30 Synthetic Motor Oil
  • Engineered for classic vehicles
  • High-zinc formula
  • Protects against rust during storage

TYPICAL TECHNICAL PROPERTIES

AMSOIL Z-ROD® 10W-30 Synthetic Motor Oil (ZRT)

Kinematic Viscosity @ 100°C, cSt (ASTM D445) 11.8
Kinematic Viscosity @ 40°C, cSt (ASTM D445) 74.9
Viscosity Index (ASTM D2270) 152
Flash Point, °C(°F) (ASTM D92) 236(457)
Fire Point, °C(°F) (ASTM D92) 268(514)
Pour Point, °C(°F) (ASTM D97) -46(-51)
NOACK Volatility, % weight loss (g/100g) (ASTM D5800) 5.5
High-Temperature/High-Shear Viscosity @150°C, 1.0 X 10^6 s.^-1, cP (ASTM D5481) 3.6
Four-Ball Wear @ 40kgf, 75°C, 1200 rpm, 1hr, scar diameter, mm (ASTM D4172) 0.35
Total Base Number (TBN) (ASTM D2896) 9.1

APPLICATIONS

Use Z-ROD Synthetic Motor Oil in engines requiring either 10W30, 10W-40 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 Oil is compatible with conventional and other synthetic motor oils. Mixing AMSOILZ-ROD Synthetic 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. Aftermarket oil additives are not recommended for use with Z-ROD.

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 two years, whichever comes first.

AMSOIL PRODUCT WARRANTY

All AMSOIL products are covered by the AMSOIL Limited Warranty. For complete information visit AMSOIL.com/warranty.aspx.

HEALTH & SAFETY

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available at AMSOIL.com or upon request at 715-392-7101. Keep Out of Reach of Children. Don’t pollute. Recycle used oil and bottle.

AMSOIL Z-ROD® 10W-30 100% Synthetic Motor Oil Reviews

5

star rating

What's in your oil?

I'm amazed at how many car guys still don't know this. Conventional motor oil formulation has changed alot over the years. Do you wonder why your performance flat tappet is history? It's not the cam. The high pressure scrub requires ZINC to keep from murdering your valve train components. Specifically camshafts and valve lifters. That's why we use Z-Rod in all of our non-roller profile applications !!

5

star rating

Muscle Car Motor Oil

I have a numbers matching 1969 Chevy Nova with a 396 CID engine with 375HP. That motor from the factory has solid lifters. Since car manufacturers stopped using solid lifters over 40 years ago the motor oils available today don't have enough Zinc Phosphorous to properly lubricate that kind of engine. My car is a street car, not a race car, and Z-Rod fills the bill for that better than any other oil I have found.

5

star rating

Run it

Perfect for running in your performance motors that require that extra protection.

Read More Reviews

Additional AMSOIL Z-ROD® 10W-30 100% Synthetic Motor Oil Resources

SAVE 25% As A Preferred Customer

Sign up today for 25% off all AMSOIL products and enjoy other membership perks and rewards as a preferred customer.