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.
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.
I started using this product in my 54 F-100. The original engine, 238 ci y-block, OHV V-8. I believe that it has helped this old motor keep on keeping on.
I have been using the Z-ROD 10w-30 oil in my 1969 Mustang/351Windsor for several years and it keeps the engine very clean and gets good oil pressure in excessive heat at highway speeds. I am switching to the 10W-40 this spring because I'm doing more extended traveling miles and tend to run over 100 miles at 65+ mph before I give it a break.
I run the 10w40 Z-Rod oil in my John Deere Z960m commercial mower it does great, no issues whatsoever. I chose this oil over others due to the added protection for flat tappet cams and anti-corrosion properties.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Great oil!
By 
FELIPE, 
a 
Verified Buyer 
from 
Bowling green Ky 
on 
May 15, 2022
So far I love it, I run it in my cammed 2015 Camaro and it runs like a dream. Definitely worth it especially with the ams oil membership. You will not be disappointed!
Thank you for visiting www.amsoil.com. Certain parts of this website may not function with Internet Explorer. To continue shopping with us, please update your browser using one of the options below.