By 
JASON, 
a 
Verified Buyer 
on 
February 10, 2026
This can be further from the truth. I have an 07 Jeep SRT 8. The previous owner was using another top oil brand. And after my truck would get to optimal running temperature. My oil pressure at idle would drop to 9-10 psi. I changed the oil after 3k miles and heard great reviews on AMSOIL. I used Amsoil Signature series oil. And my oil pressure at running temperature is appro 24-26psi. I will definitely spend the little bit more money. Knowing AMSOIL is absolutely Superior. Customer for life.
I’ve been running AMSOIL in my 2020 Jeep Gladiator Mojave and I’m seriously impressed. The engine runs noticeably smoother and quieter, even after long drives and hard use. I do a mix of highway, city, and off-road driving, and AMSOIL has held up perfectly in all conditions. Throttle response feels sharper, and I’ve had zero issues with performance or oil consumption. It gives me real peace of mind knowing my Gladiator is protected, especially in extreme heat and rugged terrain. Definitely worth the investment—I’ll be sticking with AMSOIL from here on out.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Best oil on the Market
By 
SHAWN, 
a 
Verified Buyer 
on 
February 09, 2026
I’ve used this oil for over a decade. It’s kept 2003 Toyota running at peak performance.
At the recommendation of my mechanic I recently switched from 5w-20 to 5w-30 in my 2012 Honda Accord. The first thing I noticed was the engine sounded much quieter both at idle and while driving.
I had recently noticed that the 5w-20 was being consumed at around one quart per 3500 miles. While not high consumption, I’m hoping to slow it down.
Expect to push this car passed 400k miles.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great Oil
By 
EDUARDO, 
a 
Verified Buyer 
from 
Los Angeles 
on 
February 08, 2026
I’ve been running AMSOIL in my car and changing it every 5k miles. The engine runs smoother and quieter, and the car just feels better overall. Even at 5k, the oil still looks good and does its job. Definitely worth it if you want your engine running great and well protected.
I have been using Signature oil for at least 10 years now and have never had an issue. And the added mileage between changes makes it more affordable than conventional. I have even emailed a couple questions, once about their marine 2 cycle oil and they respond quickly and positively.
Very good oil it smoothed out my engine and made it quiter ,I can feel how much better the engine runs. 2017 2ss camaro v 8 engine.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great product
By 
DEAN, 
a 
Verified Buyer 
on 
February 07, 2026
Oil kit is real sweet with the gloves and funnel made it real easy to change the oil.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
The Best Oil!
By 
SCOTT, 
a 
Verified Buyer 
on 
February 06, 2026
Yes, IMHO, Amsoil 5w-30 Full Synthetic is the best oil out there. Won’t run anything else. Might be a little on the expensive side, but so is a rebuilt engine😂. Seriously though, it’s great oil!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Best oil ever. Been using them since I was 16.
By 
GEORGE, 
a 
Verified Buyer 
from 
New York  
on 
February 06, 2026
This oil is literally the best oil ever. My Toyota now has 430,815 miles on it and still going strong. I love amsoil will never in my life use any other brand I even run it in my lawn mower and dirt bikes. Keep up the great work and excellent top tier oil products. Thank you guys. I’ve been using amsoil for over 20 years now.
By 
TRAVIS, 
a 
Verified Buyer 
from 
Virginia  
on 
February 05, 2026
Love Amsoil and their products!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Lub just fine
By 
JEAN MARC, 
a 
Verified Buyer 
from 
Deseronto  
on 
February 05, 2026
Just got a brand new engine replacement on a 3.3 v6 Hyundai Santa fee and ask them if I could bring or told them that I wanted Amsoil signature serie synthetic and they said they would put synthetic but only what is recommended wich was either Shell or quacker state so as soon I got out the dealer after 21 miles drop it and put this in I like to protect my investment thanks Amsoil
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