Customer Ratings & Reviews

This is the best oil I’ve ever used in my vehicle period. Sounds better, drives smoother, and it provides more confidence knowing I can push my car to the limits safely.

I put it in my Toyota Tacoma, it made a big difference went i was towing my travel trailer. I will not go back.

The motor oil I recently purchased from AmsOil was 0W-30. It does a great job keeping the vehicle engine alive and running nice and smooth. I have had absolutely no issues once I started using AmsOil motor oil in my vehicle. Strongly and definitely recommend using their motor oil and their products in general!!!

Very good oil. Use it in my 2016 Honda Pilot..along with 5 other vehicles and generators. Mileage went up. In addition, I changed over to Amsoil Transmission fluid. Car runs like a top. I recommend this oil with no reservations.

Totally impressed with the Signature Series Oil! I did change it at 15k because I wasn’t sure for my first oil change. Glad to say it could have gone another 10K!

Only oil I use. Best on the market.

This is some great quality oil and is considerably different than Castrol in comparison to the same viscosity properties. I should've bought this for my truck a couple years ago.

Been researching for a long while before switching to amsoil. Tried it first in my Polaris ATV. It helped it to run smoother and quieter so have now put it in my 2013 Explorer which had been using Mobil 1 Extended, but after 5,560 miles the oil is dirty and mileage has dropped to 16.5 around combination city & Hwy. With the new amsoil and filter it runs a lot smoother with smoother shifts ,can let up on the gas sooner and let it coast further to stop signs and going downhill, plus picked up 2mpg with 2nd tank. Another plus is the engine doesn't transmit that jittery feel to the steering wheel and tach doesn't jump anymore which has to be a good thing for the engine and my peace of mind that it was worth the extra cost to have it doing better at 85k. Next will be the tranny. Yes i am sold on Amsoil

Best engine oil you can buy. It holds up to the heat during summer when it's 110 degrees in Phoenix. Switch to Amsoil Signature Transmission fluid as well. My Infiniti G37 runs 30 degrees cooler and getting 4 more MPG's with both engine and transmission fluid from Amsoil. WHY would you not switch???

I have been using this product in my GM products requiring DEXOS oil for a decade. The performance has been phenomenal, especially in a GDI engine with fuel dilution where wear metals were consistently kept in the normal range.

I have a fleet of 10 vehicles and growing. I use E-350's and transits. Each vehicle puts on around 2 to 300 miles per day. The amsoil keeps the engines running quiet and I don't have to change the oil every month. I have one van with 430,000 miles and you can't hear it run. Love the product and highly recommend it.

Best oil on the market !

I bought this for my Armada with 159k+ miles since I wanted to try to make it last as long as possible. Before using this oil, the vehicle would consume about half a quart after 2000 miles. Now, it’s still full after 1500 miles! The lack of adding oil plus the longevity of SS saves me money, just with a higher upfront cost compared to other oils (less overall cost as I can go 15k+ miles 😁)

Amsoil is the best in the market

Been using this oil along with the dual filter bypass kit on my 93 Volvo 240 wagon for the past 12 years. I keep the flame trap clean and check the oil separator every once in a while. Wagon keeps rolling. I keep smiling. Thank you.

My vehicle seems to run a lot smoother and accelerate a lot better. I've told my friends about this product and how much I love it thank you