Customer Ratings & Reviews

Great quality oil. Switched from Royal Purple which is good but noticed quieter engine operation with the Amsoil.

I purchased my truck in Dec. 2013, with 58K+ miles on the odometer. I have always used AMSOIL 5W20XL synthetic engine oil. This is the required viscosity oil for my 2007 Dodge Ram 1500 Quad Cab with the 5.7L HEMI. I now have 96K+ miles on the odometer. My truck uses about 1/2 quart of oil between oil changes. I also get good fuel mileage with my truck. I highly recommend the AMSOIL 5W20XL synthetic engine oil.

I ordered a complete kit from Amsoil which excluded, a filter and six quarts of oil to complete the oil change. I've done this with two of my vehicles so far. So simple. Will order again

This is great oil NS THE Quart bottles are easy to use. I also noticed that the engine is running smoother. Still looks clean after several miles.

I have has tried all the brands of engine, transmission fluid, additive, and axle oil. AMSOIL products are the best in the market.

Our Master Tech at H-D recommended AMSOIL for my Harley. So; started using AMSOIL in my Harleys years ago; so, it was a no brainer to use AMSOIL in our new 2010 Ford Focus. Our Ford Focus now has 175,000 on it and still going strong. Runs like new.

So I have always been a royal purple fan boy however I wanted to try this oil out and see all the hype. I have a 2013 Ecoboost for reference. The engine does operate smoother idles. The temp gauge is also one needle with cooler running now. So I’m no scientist however I can tell the oil is making a good difference. I also use the transmission fluid and same results. Been very pleased so far.

Great lubricant I have been using in my vehicles and lawn tractors for 15 or more years.

Oil works as advertised

I have been using this oil in our 2005 Honda CR-V and our 2006 Honda Accord since we bought them. The CR-V has 218,000 miles and the Accord has 168,000 miles. Both cars run like new and both have the VTEC 4 cylinder engine. I change the oil every 7,500 miles and I use the WIX oil filters. No burning oil or oil consumption on either car. Very happy with this product.

I have never seen this in the stores I shop I was delight to find that Amsoil handles this weight as it was a gift for someone Love their products

I decided to us this oil in a Civic turbo that my daughter drives and doesn't see regular inspection. So far I have gotten excellent service.

Best oil

I absolutely love Amsoil. Great customer service and speedy shipping. I switched all my vehicles over to Amsoil.

I have used amsoil products for years. I have absolute and total trust in the quality and durability of all the products. Like the old saying goes " pay me now or pay me later ". Use the very best to take care of any engine and the engine will take care of you. Thank you Amsoil.

I would love to try the product, however it was shipped to me with a broken seal at the bottom of gallon container. Need to replace it

Thank you for your product and your prompt delivery service I've been using Amsoil for 40 years I will never use anything else I won stock car Championships with Amsoil and I use it in all my vehicles I'm glad I found this website thank you George

Moved to the XL 10w-40 Synthetic oil on my 02 truck, runs great! starts even better than great! Thanks Amsoil !

I use all Amsoil products in my personal cars, pickup trucks and race car. Have nothing but good things to say about it. Would not use anything else in my vehicles.

Great product for my 2008 LS460. Just reach 150,000 miles without any oil consumption issues!!