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Z-ROD® 20W-50 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

Engineered for classic vehicles
Helps retain horsepower
High-zinc formula protects flat-tappet cams, lifters, rockers & other critical components
Protects against rust during storage

Z-ROD® 20W-50 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.

Z-ROD® 20W-50 Synthetic Motor Oil

SDS

Data Bulletin

Warranty



Z-ROD® 20W-50 Synthetic Motor Oil

  • 5 star rating
    Z-Rod
    By  NATE,  a  Verified Buyer  from  orlando  on  May 17, 2022
    works great to keep my 390FE running smoothly in the FLA heat
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Engine Runs Cooler w/ Better Oil Pressure
    By  THOMAS,  a  Verified Buyer  from  Brier Washington  on  May 13, 2022
    AMSOIL Z-Rod 20W-50 allows my 406 blown engine to run smoother, cooler and with better oil pressure. I will now only use this oil in this engine. This engine is used a 41 Willys street rod. The engine now idles better and I feel is a more healthier oil to use in this performance engine.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    old nailhead
    By  MIKE,  a  Verified Buyer  from  chico  on  March 29, 2022
    best oil for me. need to know what oil to use in my 1980 triumph t140egear box , 5sp?
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    z-rod 20w-50
    By  ARTHUR,  a  Verified Buyer  on  December 29, 2021
    Just the perfect oil for my old flathead V/8 Ford. Great engine protection!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Zrod 20/50
    By  THOMAS,  a  Verified Buyer  from  Long Island NY  on  December 27, 2021
    Very convenient, don’t have to mix any additives, it’s all in there for my 64 Thunderbird!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Comparison tests
    By  LYNN,  a  Verified Buyer  from  Washington state  on  October 16, 2021
    I’ve watched a lot of oil test on YouTube and ams oil beat every other brand tested, some by a large margin- volitility, lubricity,cold flow, etc. Fast delivery was a plus.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great for classics
    By  JOSHUA,  a  Verified Buyer  from  St Augustine   on  September 27, 2021
    I noticed right away as soon I poured this in my truck even the color of it yells quality I’m very satisfied with it so far and I recommend
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Z-Rod 20w-50
    By  JODY,  a  Verified Buyer  from  Gainesville FL  on  September 14, 2021
    I have used Z-Rod 20W-50 in my 383 Stroker motor since 2014. This engine is on my Airboat and will often get run very hard for extended periods of time. The motor runs fantastic and does not use any oil. I would highly recommend this oil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Classic car oil
    By  DAN,  a  Verified Buyer  from  Sauk Centre   on  September 14, 2021
    Ordered the oil for my Classic Car within 2 days I had received it already. Definitely will order again
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    20W-50 ZROD
    By  ALEX,  a  Verified Buyer  on  September 07, 2021
    First time using this oil and I'm glad I discovered this AMSOIL product. My Range Rover has a Rover V8 that really needs the Zinc additive to prevent excess wear. This seems to be doing the trick. I pulled the dipstick 1500 miles in and the oil still looks fresh and clear with only a slight darkening. I believe this is going to be my go to oil from now on!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?