☰
Shop by Vehicle
Find AMSOIL Near You
Open full size product Z-ROD® 10W-40 Synthetic Motor Oil
Roll over image to zoom in
Roll over image to zoom in

AMSOIL Z-ROD® 10W-40 100% Synthetic Motor Oil

Product code : ZRDQT-EA

5 star rating
Read 28 reviews
Read 28 reviews

  • 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

AMSOIL Z-ROD® 10W-40 100% 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

AMSOIL Z-ROD completely prevented rust formation while a leading competitor did not.

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.

See the Product Data Bulletin for full details.

Technical Specification

AMSOIL Z-ROD® 10W-40 100% Synthetic Motor Oil

Data Bulletin

Warranty

SDS



Product Reviews

AMSOIL Z-ROD® 10W-40 100% Synthetic Motor Oil

5 star rating
Based on 28 reviews
Based on 28 reviews
See all customer reviews
  • 5 star rating
    20W-50 Z-ROD Motor oil
    By  ROY,  a  Verified Buyer  from  Sapulpa Ok  on  April 28, 2024
    Used this oil for the hydraulics in my SCAG riding lawnmower. The higher zinc is better for that application. I only use ANSOIL in all my applications.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Best product
    By  CORY,  a  Verified Buyer  from  Sellersburg Indiana   on  April 17, 2024
    Best brand of oil, I use it in all 3 of my vehicles.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great Oil
    By  MICHAEL,  a  Verified Buyer  from  Louisiana   on  April 13, 2024
    Just what the whipple supercharged 68 Camaro needed. Using the best is what it needs!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Best high zinc motor oil
    By  Russ,  a  Verified Buyer  from  CA  on  September 09, 2023
    Amsoil ZRod is the best, high zinc content motor oil that I've found. I used Amsoil Break-In Oil first, and now I'm using ZRod in my freshly rebuilt 1937 Oldsmobile straight 8.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Excellent oil
    By  JERRY,  a  Verified Buyer  from  Ky  on  September 05, 2023
    Have been running the z rod in my 1973 firebird formula for 3yrs. And in my 93 jeep yj 4.0 strait 6 and also in my sons 1986 olds cutlass. It has the zinc our older engines need. Great product as i have also been useing there signature stuff In our daily drivers for over 5 yrs. switched from mobile 1 to it great oil we now only use amsoil stuff including there HD antifreeze.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Best oil ever
    By  Brian,  a  Verified Buyer  from  OH  on  July 23, 2023
    I recommend this oil to everyone with a older hot rod
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Old cars happy
    By  CORY,  a  Verified Buyer  from  Winnipeg   on  July 05, 2023
    Dont use the old machine as much as I should.... but its protected
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Z ROD OIL
    By  KEVIN,  a  Verified Buyer  from  Ontario   on  June 26, 2023
    Great oil i use this oil for my airboat
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    High quality stuff
    By  JOEL,  a  Verified Buyer  from  BC Canada  on  June 15, 2023
    I like the fact it has just the right amount of ZDDP so I don't have to mix anything and I know my new flat tappets are protected. This is the best quality stuff out there and only the best goes into my car.
    Was this review helpful?
  • 5 star rating
    Great
    By  ROLANDO,  a  Verified Buyer  from  Texas  on  May 06, 2023
    Been running this oil in my dirt race car and it holds up great in tough conditions, I run about 240 degrees at 7600 rpm with no problems
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?