Customer Ratings & Reviews

Have not used yet, but you can't beat Amsoil.

Just changed oil the other day on 2013 suburban. Seems to have better oil pressure now better then after doing the previous oil oil change let’s hope it helps.

I can feel the difference between this synthetic oil and the previous brand which is a very good brand too. The acceleration response is very noticeable.

Based on testing, Probably the best oil available.

Use this in my 2017 Hyundai 2.0 Turbo and only change the oil after 1 year or 15K miles. Been using it since car was new. So far no issues with motor or using any oil. Motor runs like new.

Love it not as many oil changes and better protection

I used this oil in my 2013 GT500 since new. In that time I have never had to add any oil within the oil change interval (4000km a year/ once a year oil changes). I borescoped the cylinders every now and then and could still see the cross hatch on the cylinders. I now use it in my 2021 Roush Supercharged Mustang GT.

My vehicle went from 29MPG to 32MPG. My Toyota Matrix feels smooth when i step on the gas.

I've used the AMSOIL Signature Series motor oil for several years now and think it is an excellent oil. I just wish it was more available near where I live. I have found it at Rural King near me but they do not carry it in the weight I need for my vehicle which is 0W-20. But when ordering it online it has always arrived in 3 or 4 days.

I was skeptical at first about amsoil then I researched and read all the great things about there oil and I am so happy I gave amsoil a shot. My mustang is running so much better than when I first bought it and I gained 2 to 3 mpg. I was so impressed by the motor oil and now my transmission and differential now has amsoil running though it.

Amsoil is the only oil used in all our vehicles. It keeps the engine clean even past if for some reason the 1 year or 25,000 miles. My son had his 2012 Nissan Maxima in Nissan shop for work and the Mechanic told him after 25 years working he had never seen an engine as clean as his and it was due the Amsoil oil he uses.

great oil. I have been using it in my 2005 dodge since i got it. Now using it in my 2010 jeep

I have been running this in my 2010 FJ Cruiser since it was new and have zero issues with my engine @ 182,000 miles. My use would probably border heavy-duty / extreme. 7,000 ft. elevation. Mountains to the desert on a regular basis with light towing common. Change it around 10,000 miles. Inadvertently pushed it past that once and the oil looked and smelled the same at change time. Frankly, I just don't even think about or have any concerns about my power train because of this oil. I also bought a 2011 Tundra with the 5.7 in it with 80,000 miles and have switched over to Amsoil Signature as well - same viscosity. When we found the truck, it was kind of an abused pound puppy situation. Of course the dealer who was selling it claimed to have done an "eleven-jillion point inspection", so naturally we get the truck home and find the oil 3 quarts low and black as tar. Changed out and replaced oil with this oil, ran it 2000 miles and used the engine flush product by Amsoil. Pretty alarming what came out that time! The flush product is very effective. The next change however the oil looked normal and I hear very little engine "chatter" which is pretty common for the 5.7 motor. I'm feeling good about this engine despite its previous neglect. I also run Amsoil products in the whole rest of the drive train.....tranny and differentials and have never had a failure!

I believe that if you buy a high quality product to begin with, that you will experience better results in the long run. I can just tell by how well my cars idle and accelerate, that I have found that high quality in AMSOIL. My cars never ran this well before, using other motor oils. I usually keep my vehicles for a long time, and I fully expect them to keep running for a long time, using AMSOIL products! I wish that I had tried AMSOIL years ago. I know that I would have switched sooner.

EXCELLENT PRODUCTS!! FAST SHIPPING!!

First time using this oil in my truck, but I know the products well. I know this oil will give me the best protection.

I use this oil in my Motorhome and it runs great. Need an oil that withstands the demands of my engine.

Signature Series 0W-30 is the only thing I use. I Dont trust nothing Else.

Great oil, must have

I’m using it for the first time now, but if you know what’s being written about it, I’ll be happy and buy it in the near future!