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AMSOIL Z-ROD® 20W-50 100% Synthetic Motor Oil
Product code : ZRFQT-EA
- Engineered for classic vehicles
- Helps retain horsepower
- High-zinc formula protects flat-tappet cams, lifters, rockers & other critical components
- Protects against rust during storage
AMSOIL Z-ROD® 20W-50 100% Synthetic Motor Oil
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.
See the Product Data Bulletin for full details.
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.
AMSOIL Z-ROD® 20W-50 100% Synthetic Motor Oil
Data Bulletin
Data BulletinsWarranty
SDS
AMSOIL Z-ROD® 20W-50 100% Synthetic Motor Oil
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ZrodBy Bart, a Verified Buyer on June 12, 2025It's all I will use.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Z -Rod oil for classic carsBy BRIAN, a Verified Buyer from Central VA on June 07, 2025I have run Z-Rod oil in my 1968 Camaro for years. I rebuilt the big block engine in 2005, and so far have had excellent results. I run Amsoil in every vehicle I own.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Great for flat tappet liftersBy COLLIN, a Verified Buyer on June 04, 2025Not a bad price for having both anti-corrosion and elevated zinc level. I have a boat with a 351 Windsor flat tappet camshaft engine, this oil is well suited for my application.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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'Cuda fast delivery!By CRAIG, a Verified Buyer from Oregon on May 26, 2025Excellent speed and accuracy, in filling my order. Well done by the AMSOIL distributor.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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for my classic BMWBy LAWRENCE, a Verified Buyer from Cincinnati, OH on April 23, 2025Keeps the engine in my classic purringBottom LineYes, I would recommend this to a friend.Was this review helpful?
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Stopped All Previous Engine LeaksBy GLENN, a Verified Buyer from Orlando, FL on April 14, 2025After much research and thought I finally decided to switch to synthetic motor oil last year in my 1979 Corvette with a 350 crate engine with low mileage. There had been several oil leaks from the engine area but after running Amsoil Z-Rod, the leaks all stopped. I used it with the Wix oil filter. This year I did the annual oil change and still no leaks and the engine actually purrs differently from previously without the Amsoil. I am a believer.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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I Like 😉By LANCE, a Verified Buyer on April 08, 2025Changed oil on 09 suburban was getting 15 miles to the gallon went to 19 engine feels and sounds way smoother than other oils for the last 6uears that we have had this vehicleBottom LineYes, I would recommend this to a friend.Was this review helpful?
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DeliveryBy ANTHONY, a Verified Buyer on March 09, 2025Bottles were leaking. Probably from shippingBottom LineYes, I would recommend this to a friend.Was this review helpful?
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Great Motor OilBy DON, a Verified Buyer from Apopka Florida on February 11, 2025This motor oil is just what my numbers matching 1970 El Camino Custom needed! Idle smoothed right out, motor noise is less and oil pressure is right where it should be. My new Comp Cam is saying thank you!!!Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Ultimate ProtectionBy ANTHONY, a Verified Buyer on October 11, 2024I use this oil in a Ford Cleveland 408 stroker and my 66 Mustang GT 289 A- code engine. After a refresh on the stroker, I literally could have reused the bearings. This is 550+ hp street engine that gets drove like it's supposed to. I use Amsoil in everything I drive. Also, broke in the 408 on the Dyno with the Amsoil break in oil.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
