I have been using Amsoil products for years. The originators of synthetic oils. They seem to always come out on top of all the testing of the other top motor oils and automotive products. I use Amsoil exclusively for all of my equipment that use oil. I am particularly fond of the signature series oil for our daily drivers.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
The Best Oil
By 
BRICE, 
a 
Verified Buyer 
from 
Ft. Myers 
on 
September 14, 2025
I can tell a difference at first start up. The best I’ve ever used. I used this oil for 125k miles on my last truck. I now use it on my new one also. Thank you Amsoil
I have been using Amsoil for many years. I started using it in my motorcycle because of the way it handles the heat of an air cooled engine. Now I use it in everything I own that has a piston and a crankshaft. I use the 10w/30 signature series in my 1985 GMC K15 that I have owned for 35 years. I wouldn’t use anything else in it.
...since Signature Series started with 0-30, in my 03 Grand Marquis without any hiccups and lots of carefree miles knowing I've got the best protection money can buy.
I've actually switched all of my other vehicles to Sig.Series oils, with the same results.
Hopefully Amsoil continues to uphold their quality products until EV's are the only vehicles running the roads of our great country. Sometime after I'm gone!!!
If you check any website, expert, etc, you will find that AMSOIL is the best oil. There is a noticeable difference in how all my cars behaved since I switched over. It’s worth the cost.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Truck Runs Smoother
By 
ROBERT, 
a 
Verified Buyer 
on 
September 11, 2025
The use of Signature series 5w-30 in my 2020 Ford Ranger has made a huge difference in terms acceleration; and runs smoother overall. Can’t wait to see the difference in subzero temperatures.
I’m new to Amsoil and I’m hooked. The product arrived early and was packaged nicely. I’ve been checking my oil every week and the oil is much cleaner than the mobile one I used in the past. I’m switching all of my oil; transmission, front and rear differentials, over to Amsoil.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
AMS Oil Great PR and Customer Services
By 
Big E, 
a 
Verified Buyer 
from 
Laplace, La 
on 
September 09, 2025
I took the recommendation of the Shop that built my engine D&A Transmission to use AMS Oil happy with the product and most of all the great experience with ordering the product thanks for being customer friendly.
I work in the oilfield and, if you know you know. Amsoil gives me the confidence to run these lease roads in the worst conditions. I never worry about my oil letting me down! Now my suspension, that's a different story! 🤪
I've been using Amsoil oil and filters for years on both gas and diesel engines and they've been great. Never had a problem with shipping and I'll continue to use the best out there!
My Chevy Traverse runs smoother and quieter. It takes off like a rocket since I put AJ’s formula in the engine. As compared to the bulk oil that the car came with, the Amsoil is far superior.
I’ve ran this oil for 100,000 miles. Car has 140k now. Lexus - 3.5. 5k oil change interval. Oil analysis has been well below normal wear averages since the first 5k, which was done at 45k. “Basically half” Although I can’t say whether the extra money is worth it for Amsoil, I cannot argue about the results. Amsoil filter, all other fluids I stick to stock Toyota OEM. The wear results make me want to switch all my vehicles. But…. “I have also cleared 300k on numerous Toyotas/subarus/ 1 ford/ with other brand oil”. The main difference is the analysis results tho. Just change your oil sooner than later. Great product, great delivery, always available, results.
I highly recommend Amsoil signature series to anyone who wants to run the best of the best in their car! My 2019 supercharged Mustang GT consumed Mobil 1 oil like it was water, amsoil is little to no loss. Car feels much better and is much more quiet as far as all of the coyote ticks. Highly recommend!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Top quality engine oil, long-lasting, outstanding protection
Amsoil is top-rated, top-tested, among the best products consistently. I get peace of mind with Amsoil protecting my engines. I know the quality I am getting with Amsoil and that's why I use it in all my vehicles and machinery. The extra protection, the stability, that's top quality
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