Customer Ratings & Reviews

Just like the quarts , but a little cheaper!

Switched to Amsoil after using other brands and not being able to get them at the time I needed to do an oil change. I now use one brand for truck and also use for my motorcycle s as well, a it is delivered to my front porch! So far I love the product!

Engine was smoother

I just changed the oil in my 2021 Jeep Wrangler 3.6 for the second time using AMSOIL. I decided from the start after purchasing I wanted to use the best. I did a lot of research on the top oils used, and from what I could find, AMSOIL was right there at the top. I have 4 vehicles and am now using AMSOIL in all of them.

I'm a Licensed Chief Engineer for a US Government Contractor. I've spent the last 29 years designing, and maintaining machinery. Amsoil is not the cheapest, but it is the best from an Engineering perspective. Not only do I use it at work, but I use it in all my vehicles and even my daughter's Gokart.

Been using Amsoil for many years in everything I own. It has helped make my investments last longer!

Been using Amsoil for many years in everything I own. It has helped make my investments last longer!

You can’t go wrong with Amsoil.

I've been using Amsoil Signature on my 2020 Silverado RST Z71 since it was new. Absolutely the best oil on the market, hands-down! While it is a little more expensive than regular store bought oil, the peace of mind and the ability to go 10,000+ miles on an oil change is an exceptional trade off. Id definitely recommend all new American trucks owners to use Amsoil Signature, it just doesn't get any better to protect your investment

I've used this product on my 2021 Ram 1500 since my 1st oil change and it has performed great. The extended oil change miles are a big help when driving a lot of miles. It's a bit expensive on the front end but the long term pay off is well worth it. I just hit 99,000 miles on this Ram and this product is superior to any of it's competition.

Put new Amsoil in my 2000 Tundra. Engine runs so much smoother. Great oil.. Fast service and shipping. Had product in about 5 days after ordering online.

Best synthetic I have ever used. Years ago I started with the red horse oil, then switch to the oil with the funny color. They worked good but Amsoil seems to make the engine run smoother and oil is not as dirty as milage increases after oil change.

Motor seems to run smoother and oil is cleaner as milage increases.

I have a twin turbo 3.5 ecoboost f150 and I personally notice a fuel economy difference from 14.6 miles per gallon, to 16.3 average. I’ve also noticed that every oil change the oil comes out cleaner and doesn’t smell burnt. I change my oil between every 1,000 to 2,000 miles. Overall engine performance is a little better, turbos spool up better and hold pressure higher and longer. Highly recommend this to anyone who is looking to switching to AMSOIL. Shipping and handling is also very fast and handled with care.

Great product, ordered one day, order arrived the next day

I used the Amsoil engine flush and Signature Series oil but it didn't help on the oil consumption at all, in one of my vehicles, but I do trust that it is a fine oil. In one other of my four vehicles I used the Amsoil in, it hasn't used any oil, but it barely did anyway. So it's too early to tell on that one. I'm kinda also bothered that I spent over $200 on my order and received a free gift of three (a whole 3) Nitrile gloves and a few silly cardboard funnels, which I threw away cause any car guy already has a good funnel:) I thought these were just normal order throw-ins, but I see now, from an email I got, that now they send a nice headlamp with a minimum $70 order! Guess I'll have to time out anymore ordering according.

Still clatters on start up.

2017 Sti grabbed extra 2psi off engine oil Car runs smoother This is Fiji water but for a car 5 stars!

I have used several different AMS oils from motorcycle to motorhome all work good.

I have used Signature Series in my wife’s Subaru’s for 18yrs. Never had any issues ever. I Run it between 15-20k. Never to 25k.