Customer Ratings & Reviews

Use this in my daughters honda civic she loves the once a year oil changes

I use Amsoil Signature Series oil exclusively in my 2007 Expedition and my 2010 F150. Love the protection and improved performance in both vehicles.

Great product....great protection.

I love this oil. I will be using this oil on my wife's vehicle next oil change. The only thing I don't like is I need to add 1 to 2 quarts of oil before the next the oil change. Over all LOVE it.

I use AMSOIL products---particularly oils in every vehicle that I have owned since 1968! This is an excellent product. I have never had a hitch or failure using ANY of the products. All my relatives and friends are convinced converts! It is comforting not to have any worry about your lubricants, regardless of their use.

Awesome product

Love the product. Vehicle runs cooler and sounds quieter.

Great product

I switched to Amsoil full synthetic after experiencing some sluggish cold weather starts using the competitors conventional oil. Now I have quicker cold weather starts and great warm weather protection. I have not only switched my trucks to Amsoil but also my boat and four wheelers.

Fantastic product. I use it in my Ridgeline. I opened the oil cap just to look around, the inside of the engine looked new even with over 100,000 miles. Never uses a drop.

fill it out for me

Very good product, I use on all my oli changes.

Great product, my engines look great when I open them up! I run amsoil in two turbocharged cars and a streetbike. Track days, canyon roads, daily driving, it's great for it all!

I have been using Amsoil products for over 20 years. They have never let me down and I truly believe they save me money in the long run.

Been using for last 5 years. Stopped my old engine from knocking, and went from using oil to not using when I switched to Amsoil.

I used your oil more than 15 years, now my car run like BRAND NEW (My car Is Honda Accord 2008). Thank you.

2017 Taco TRD offroad 4x4. I have just over 2500 miles on this oil now and have seen real MPG gains, granted very slight ( just over 1 MPG gain). My truck definitely runs better too.

As long as Amsoil continues to win the comparison tests against the competition, I will continue to purchase this product. The pressure is on Amsoil!

I put this in my wife's Audi and my Range Rover sport better engine protection and best oil you can buy.

I initially ordered the transmission fluid and accidentally got the engine oil. After returning the engine oil and receiving transmission fluid signature series, I must say how pleased I am. I noticed the few MPG improvement after changing the transmission fluid which had 43K on it. The engine shifts through the gears more smoothly.