Customer Ratings & Reviews

Love the 0w-30 SS Oil. I mix 1 quart of SS 0w-30 with 4 quarts of SS 0w-20 for my 2.4L Honda engine to achieve what I think is a 'thick' 0w-20 mix. Works great! Love the results. Engine just tripped over 300,000 miles and is performing like brand-new. Only major work done on the engine has been replaced timing chain & guides at 220,000 miles. It has majority of its life on Amsoil... with some OCI's with Mobil 1 Ext Prot and Valvoline Ext Perf. Have been on Amsoil for the last 20,000 miles since last experiment of Mobil 1 EP. Will not be doing any more of those comparisons... the Honda engine does better on Amsoil SS.

Love this Oil. Keeps my 300,000 mile Honda engine clean and purring like a kitten. Just finished a 525 mile roadtrip and achieved 38 mpg ... which is up about 3-4 mpg in similar roadtrips when using Valvoline Ext Perf 0w-20 oil. Will not continue any further experiments with other oil brands like I have done in the past. Will stick with Amsoil SS.

Have used Amsol Oil all the cars life. Has 193,400 miles on it without any engine problems.

You get what you pay for. Became a member a few years back. Love my Tacoma 2015 sport, and therefore I give it the best I believe I can get. Have done some research and feel this is the best oil 4 my Taco. Made in the USA. Loyal customer, much love, PMA.

I use AMSOIL products in every one of my vehicles. Best product on the market.

Best performance and durability

A money saver with extended drain. Great protection from friction and heat.

My wifes car runs so much smoother. I love that it's 100% synthetic and I don't have to change her oil every 5k miles. Eben is the reason I switched to AMSOIL.

This is by far the best oil I have ever used! Have used Mobil One but for roughly the same price you get a much better overall performance product with Amsoil. Every 5K miles I change my oil so for me it’s roughly 2 changes a year so the confidence of knowing I have an amazing oil plus the protection of Amsoil makes me happy!!

Engine is running so much smoother after swapping.

your products are of very good quality. I hope you give discounts to your customers. )

I decided to make the switch to Amsoil. So far, so good. No consumption, burning or puffs of blue smoke on cold starts.

Use it in a vehicle that only gets driven about 4000 miles a year. It gets changed once a year and used oil comes out clean. Want a superior oil for these reasons and the Signature oil fulfills my needs.

Went from using Mobil 1 to Amsoil Sig Series Full Synthetic 5-30 years ago. Even though Corvettes recommend Mobil 1. My Vette runs cooler and quieter with Amsoil. I have tracked the Vette and it performed excellent. I switched both my daily drivers to Amsoil as well. Have also convinced other Vette owners to switch to Amsoil. They have all become regular users as well.

Definitely ordering it again

I've been using Amsoil in my wife's car since she bought it brand new. I would use nothing less!!

Been using Amsoil for the last 20 years and every car I have used it in never burned oil and and never leaked. And I keep my cars for a long time most of them have 200,000 miles. Will always use Amsoil no matter how the manufacturers try to bad mouth it or try to get me to use their oil. Had a few cars where the manufacturer had recalls on oil burning and none of my cars burned oil using Amsoil. Maybe the car manufacturers should start recommending Amsoil lol.

Using Amsoil is equivalent to eating the right food. Don't use cheap products in your vehicle. Protect the life of the engine with the best lubricants.

Have a 2009 Volvo and have used Amsoil for the last 120,000 miles. Currently I have 211,000 miles on my vehicle and runs as smooth as a new car! I have used Mobile 1 in past before I switched to Amsoil. There definitely a difference in how smooth and quiet my engine runs. Mobile 1 is good but Amsoil is definitely a step above and worth the extra $ u pay to have your engine run at peak performance

I tow a 30’ travel trailer and wouldn’t trust any other oil for my vehicle. It’s lab proven.