Customer Ratings & Reviews

I've been using this oil on both my 2015 Jeep SRT and my 2008 Jeep SRT8 for the last 3-4 years. They both run so smoothly and the longevity of this oil is unmatched. No one comes close in quality to AMSOIL!

I spent years running different oils and comparing quality and performance. Amsoil in my experience performs the best, from below freezing temperatures to high desert temperatures, superior lubrication and wear protection, and all temperature performance to any other oil I’ve tried.

Happy with the product. Engine runs quieter and performs better.

received oil promptly, no issues with shipping. Exact amount of oil needed and proceeded to change without problems, new vehicle for me and was not sure what oil former owners used. I use Amsoil in all my vehicles: 2 motorcycles, 2 jeeps, a truck and a Lexus. No engine issues.

Great products and oil filter.

Works good

This is the absolute best oil available for my 2007 Mercedes-Benz C230 Sport. I drive about 18000 miles per year, and I change my oil 1 time per year. This oil is well worth the money!

Been using Amsoil for many years great customer service and fast delivery

I have used this oil since day one on two brand new Toyotas, 2020 Highlander,2021 Tundra. Excellent cold starts

Started using this oil and I can honestly say it runs cleaner and the oil pressure stays consistent throughout the entire time between oil changes. My oil level is also remaining the same with little too no loss at all.

Awesome in my 6.2L Silverado

Perfect oil for my 08 LS 460

I’ve used this oil in my ‘04 mustang cobra for years .I also use the same stuff in my ‘02 Ford F-250 and my wife’s ‘18 Ford Rapter.I just like knowing I have the best oil money can buy,hands down.The ‘02 F-250 has over 120,000 miles on it and runs great. I’ll keep using this oil from now on.

I can wait longer between oil changes which saves me time!

One of the most important aspects of this product which switched me over from another synthetic oil competitor is the volatility rating. I had experienced oil loss previously, but I know with the regular oil changes that I do and verifying the PCV system was not obstructed, I landed on the problem of volatility. With some lesser quality synthetics it can result in oil evaporation. My vehicle has a number of miles on it, but the amount of oil loss, and the duration of time it happens within, was considerably, and significantly different when I switched to Amsoil.

After 2 oil changes motor just purs, operation is quieter and acceleration is smooth powerful and not as noisy on RPM revs. Invest in your cars/trucks engine life longevity and get your case of 5W30 Signature today!!

I'm happy with my purchase. It's the ONLY oil I use. I just wish I could get free shipping. Being that I'm a member. it should be part of the perk

I have been using AMSOIL in all of my Lexus and previous vehicles for years. Based on my research and due diligence of the company and it’s products, I am totally confident my engines are in the best shape ever and will last for many years to come. Guys keep up the awesome work and creating excellent products.

With Amsoil there is NO HEMI TICK. Proper lubrication makes my cars purr. 0-40 in the 6.2 Hellcat and 6.4 Scatpack. 10-40 in the Old School 440.

I purchased 0-20W Full Synthetic Signature from AMSOIL for my wife’s 2019 Honda CRV 1.5L Turbo. I’m hoping it will surpass any other Full Synthetic Motor Oil on the Open Market, Including Castro , Mobil 1 and The OEM Dealership Oil Honda Uses. It poured out of the Bottle Quite Clear in Comparison to Any Other Brand I have Utilized AND I have Used A Lot of Different Brands For Longevity, Reliability As Well As Noticeable Fuel Savings considering Today’s Fuel Costs (08/20/2022. So far it’s Still Very Clear on The Dipstick. I Used a Mobil 1 Long Life/ Protection Guarantee Oil Filter with it from Walmart. Extra Fuel Economy has not been noted. Engine runs Great on it though. Only Time will Tell the True Benefits