Customer Ratings & Reviews

I use the Amsoil 5w 30 and the Ea Amsoil Oil Filters in both my 2018 Chevrolet Silverado and Tahoe. The quality and durability of the Amsoil is second to none.

Used and followed Amsoil for most of the last 45 years. It's always got the job done and the 5W-30 has worked great whether it's winter or summer. Change it once a year and forget about it. Even in my older high mileage cars, they make it from oil change to oil change without having to add. I love it. Can't understand why anyone would use anything else.

Use in my f-150 4x4

Great product. I drive 120 miles a day to go to work. I increased my gas mileage and can tell the difference in the engine in how quite it runs.

I use Amsoil for all my vehicles, have done so for over 15 years, won't trust their protection to any other oil.

Great products keeps engines clean and lubricated

I use this oil in my ZL1 Camaro and it makes the car run cooler and the means that less friction, i have no dislikes

Nothing better out there for my 6.4 hemi. And my sxs vehicle's

I use this on my 2008 Volvo C30R with 166000 miles. Engine runs smoothly with amsoil.

I have been running an amsoil product in my 08 Toyota Tundra since new. When i say new i mean when the engine had enough km's that it was past the break in point I switched. I ran Amsoil XL for several years at the recommendation of the place i get my oil changes at. Changed it out every 6 months. I am pretty sure Signature Series was never recommend as they would only get my business once per year. Not knowing exactly what Amsoil had to offer I did some further research and discovered this Signature Series oil. I now change my own oil as I am able to order directly from Amsoil. I have been running Signature Series for about 5 yrs now with basically a once a yr oil change. I mainly drive secondary rds but come fall hunting seasons i am all over the backwoods. Here where i live it can get down to -30 at times during the winter. The flow rate is excellent in extreme cold as well as I always watch oil pressure gauge and no matter how cold it seems the needle always jumps up quickly on cold start up. My truck now has 271,000 KM's on it. Even with once a yr oil changes the oil doesn't look alot darker than it did when i changed it the previous year. Great product I can't imagine running a different oil in. I now have my son's truck running on Signature Series as well. I plan on putting 1 million Km's on my truck!

This was recommended for my vehicle and I have used other amsoil products in other vehicles and have blessed using it. Tks

Oil is the best

Have used Amsoil on my 2018 WB Hellcat since 1st. oil change with Extremely satisfying results. So happy use it in my Jeep Wrangler as well. Nothing but the best for my vehicles.

2017 Tacoma TRD Off Road struggles to get 18mpg. Used Signature Series Synthetic and now getting 20-21mpg.

Save time, money and engine wear. Have used Amsoil in all my vehicles and equipment for over 25 years and and have not experienced an engine failure.

Been using Amsoil in my Dodge Dakota since I purchased it 13 years ago. Today it has 250,000 miles on it and still runs great.

I'm not sure how you review oil. When I opened container, the oil, was oily. So I put it in my engine. My engine has not blown up, so I assume it's the right oil. I'll keep buying their oil, until it no longer feels oily to the touch straight out of the bottle.

Feels and runs smoothly !

Excellent protection

I use Amsoil in everything from my truck to my motorcycle, lawn mowers, generators and anything that takes oil. I also use the oil filters, gear oil, and everything that Amsoil makes.