Customer Ratings & Reviews

I've been using Amsoil Synthetic for several oil changes now in my GMC Sierra HD2500 work truck. The engine in this truck gets worked hard with most of its 85K miles spent towing a big Dustless Blasting DB800 trailer on these western PA roads. From highways, to winding and hilly back country roads, to gravel roads, even off road, this engine has performed flawlessly, and I know the Amsoil engine oil has contributed to that performance. I will not use another oil in my truck--you don't mess with success. Not only does the oil perform well, but also the service is top notch. I get items from my online orders within a day or two, and they are always correct. Running a small business is full of headaches, but my engine oil isn't one of them. Thanks Amsoil!

I have done four vehicles oil change and everyone has noticed how smooth their engine is running. Will continue to recommend this product to everyone.

Just recently changed our HRV from M1 0W-20 EP to Amsoil Signature 0W-20, does seem a bit quieter, time will tell. I have confidence in this oil.

I've been using Amsoil products for too many years to count and I have never been disappointed with the quality and performance of any of their products.

First time using this oil. But if it's as good as the diesel oil it will be awesome.

Would not put anything else in my vehicles.

Did my first o/c at 1,000 miles & then again at 3,000 on my new ‘25 Ranger Raptor with the 3.0L Ecoboost and instantly switched it to AMSOIL 5w-30 full synthetic and that’s all this engine will ever get from here on out. Now I’ll settle into 5K intervals. Cheap insurance as I do it myself. Had nothing but success with this oil on my last 2019 F-150 with the 3.5L Eco. These twin turbos engines are synonymous for reacting negatively with the cam phasers & whatnot to low quality & dirty oil and low maintenance. Followed the same 5K routine and used the same AMSOIL and when I traded that F-150 in on this Ranger with 135K I had never as much as had an ounce of engine or cam phasers rattle troubles. So I never considered any other oil brand options. Returned back to what has already proved itself to me. AMSOIL.

I’ve got a 2020 Subaru WRX. I use to use Mobile 1 -I like to drive fast the car wants to be driven fast. Mobile 1 wasn’t holding up well. I was only getting 2500 miles per Oil change. Amsoil came highly recommended so I’m gave it a try. -The ride feels very smooth now. YOUR GONNA PAY FOR IT. - It’s a very expensive product, this is my first time using it, I hope it delivers, if so I’ll be a fan for life.

I had purchased this oil for my built 2012 Camaro ss. The difference in protection compared to other oils is unparalleled. There is no better oil on any market than amsoil. I will continue to use it at all my oil change intervals. And will recommend it it all my family and friends. And to anyone I speak with. Thank you all for making a great product that anyone can feel safe to use for any of there automotive projects.

This product is very nice and it showed up pretty quick. Going to be buying again for sure

Never any issues with Amsoil lubricants.

Hoping Amsoil products will help keep engine clean as it is a high quality product and my Hyundai has a reputation of burning oil excessively.

Amsoil is the best oil there is. Hands down no contest. My Suzuki V-STROM 800 loves this oil. Its the only oil I use. Highly recommend

Some might say this oil is a little expensive , But it's not . I used to change my oil every 3 months with other motor oils. now I change my oil every 6000 miles. I actually save money on extra trip to mechanic and oil filter. I know my motor on my ford E350 box truck is getting the best oil and detergents .Shipping is just as fast as when I order items from Amazon.. Thank you Amsoil, I am please and have even told of this number one oil and it's great customer service. Happy Holiday Everyone

Just like with my diesel, any gas vehicles I service get the signature series synthetic if the customer asks. Tests out just like my personal diesel truck using the 5W-40 signature series diesel oil -- very well.

Just a great product. I've never had an issue with it and our 4runners engine purs like a kitten.

Happy with the Product and Support. Enjoy the on-line ordering process. The website is easy follow. I use the products for my Pickup & ATV

Use it in my Yukon and no complaints.

Amsoil is the ONLY Oil I’ll use in my truck! Only the best for my built L83

Great product, my Toyota is getting better mileage now. I couldn't be happier