Amsoil AMO high zinc full synthetic is the recommended oil for my cars engine . The 90-95 Corvette ZR1 needs an oil with the correct additive package of zinc and phosphorus. It's LT5 engine with 4 cams, flat tappets , and 32 valves needs an oil that meets the manufacturers requirements. That oil use to be Mobil 1 full synthetic. Mobile 1 has reduced the zinc and phosphorus package in their current oil. Most new engines have roller valve train and they also reduced the package over catalytic converter life concerns. My engine builder recommends the Amsoil AMO product. It meets the original manufacturer recommendation . I use only Amsoil in all my cars . Especially my Corvette ZR1 with its exotic 528 horse power LT5 . It's cheap insurance .
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Quality oil
By 
KENNETH, 
a 
Verified Buyer 
on 
May 27, 2021
Running oil in 2 dirt track cars, holds up good under pressure and high rpm’s
So far it seems to be working good I’m thinking my old motor has over 300,000 miles on it and it seems to be running more quite then before and good oil pressure. 👍🏻👍🏻
Great oil. I own a landscape company and We have been using it in all our equipment for years. It has stood up to all the abuses and helped our equipment last longer.
I've been using AMSOIL since 2002 starting with my Turbo Hayabusa all the way to current Big Turbo Subaru, this applies to engine, transmission or rear differential. Every time I refresh/rebuild my engine it always looks perfect and shows extremely low to no engine wear on the internals. Pay for the best and get the best!
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