Z Rod makes my '66 Impala run better than ever before. Took away the harmonics at highway speeds, idles smoother, I actually had to turn the idle down. I would recommend for any engine with a flat tappet cam or classic.,,
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Keep your old engines lubricated.
By 
Red Truck Guy, 
a 
Verified Buyer 
from 
Northern Calif. 
on 
April 23, 2022
It is great to have a 100% synthetic oil that has the additives for old flat tappet engines. I have 2 collector cars that have there original engines and sometimes sit for a few weeks between drives. When you have 60 to 70 year old engines they need the bet oil to keep them starting and running without bad noises, even on cold starts.
THIS product comes highly recommended by my motorhome club because it is rated for older engines with flat tappets. I have had my first oil change only a few miles ago on an engine showing 80,000 miles on the odometer So far it is a good product. Oil pressure is high on a 1978 GMC 403 powered motorhome. I have ordered an additional 12 quarts giving me a stock of 16 quarts until my next oil change. IF my engine burns off one quart (which is typical of these engines) I will be able to top it up twice and have sufficient oil on hand for another such oil change and top-up. This should do me for the entire year 2022 and most of 2023! Stay tuned. If there is a problem I will report it however, I doubt I will have anything bad to say.
I have a boosted forged LS6 corvette over 700 rwhp and about 820 at the crank. I need the best oil I can get. I trust amsoil products to perform.
Years ago, I had an engine with metal fragments in the oil and using a well popular brand, and shortly, it had to be rebuilt. If I would of used amsoil during that time, I believe my engine would of been saved.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Oil
By 
KRIS, 
a 
Verified Buyer 
on 
January 09, 2022
Use this in my 2002 Dakota works good.
I will us one quart of Z-rod and 3 quarts of
10w-30 signature series and it runs like it was back when it was new
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Hot Rod Oil
By 
PAUL, 
a 
Verified Buyer 
from 
Fall River Ks 
on 
January 08, 2022
Used Amsoil Break in oil on my 355 SBC Ran 500 miles changed over to the Z-Rod oil and now have 2,500 on engine runs great .No lifter noise great oil Psi This is some great oil
There exists no comparison between the Z Rod oil and regular conventional oils. My cars engine need zinc and Z Rod has just the right amount. Change oil once a year and it does a great
Z-ROD is exactly what I need to keep my original 1966 V8 going strong. It spends a lot of time in storage and Z-ROD is exactly what I need to fight moisture/rust and fire it up when bringing it out to drive. The Zinc additive is the best part and protects my old engine components. Wouldn't buy any other oil!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Amsoil Z Rod.
By 
JACK, 
a 
Verified Buyer 
from 
Santa Clarita Ca. 
on 
September 28, 2021
I started using Z-Rod motor oil in my 68 Charger last year. I have tried many other motor oils in my 440 engine. These big block engines create a lot of heat and are pretty tough on oil.
With the Z-Rod oil, I find my engine runs cooler and just seems to run so much better. It's not uncommon for big block Chrysler engines to be topped up with oil every so often but with this oil, my engine doesn't require a top up nearly as often.
This is my second case I've ordered and will run nothing else in my classic car.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
ZRod
By 
WILLIAM, 
a 
Verified Buyer 
from 
California  
on 
September 13, 2021
I run Z-Rod in all my classics ,'64 Impala, '69 Stingray and my '63 Scout Model 80. I wouldn't trust these awesome rides to anything else.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Saved my engine
By 
JASON, 
a 
Verified Buyer 
on 
August 31, 2021
I lost oil psi on my 496 bbc and I believe this oil saved me from having to do a rebuild
Fixed the oil issue and engine still running with no problems
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