Customer Ratings & Reviews

I have used the extended life oil and my engine has been running perfectly with OVR 60,000 miles

I got my parents running this oil in their ‘06 Colorado as they don’t have a turbo or need everything the signature offers. This is still a fantastic oil and they have had great success with the extreme cold we experience up here -40 to -50 degrees celcius plugged in cold starts. I’ve left a bottle of this outside overnight and poured it out in -38 c no problem.

fast shipping and for free, quality oil and price is very good

I drive about 40k miles a year and i need an oil i can trust as well as products to clean my engine. The XL line of oil is my goto oil

i have 3 vehicles and several gas powered outdoor tools use Amsoil in all of them.

I have tahoe and Silverado both with 3.0 durmax diesel only oil I will use

Running amsoil in every thing including outboard

I switched both cars to the same viscosity so I can order this in gallon jugs. Very good oil and I'm saving money, I'm way smarter than I look.

I've used this product since the very 1st oil change on my 2004 Ram 1500 and it's by far the best product I have ever used when it comes to motor oil and life time of your engine.

Really happy with the service and delivery from AMSOIL, I’ll be a long term consumer.

time will tell how good it may be

Been around for long time because amsoil is the best

Best oil ever prompt delivery

I’ve been a fan of Amsoil since I was a kid. This is my go to oil, and it’s affordable. I would even say the OE synthetic is still better than all the other brands out there. The extended is nice I went like 10k or more and it was still relatively clean. Don’t hesitate this is the oil you deserve

4000 mile oil change to get rid break in oil. This oil is perfect for this car; wife drives this close to 100 miles a day. I do all of the oil changes on this car. The oil can go with extended oil changes. I will be changing oil filters some where around 6000 to 8000 miles. Also will do oil analysis at the filter changes to see how far I can go.

The Best oil I have used my car runs very smooth.

I have used AMSOIL ever since buy a used car with an engine that had dark oil even after an oil change but using AMSOIL for a year and the oil is now clean when it’s due for an oil change

Best oil which I used

Correct product ordered and fast delivery

Rapid service , great value. The car seems to run smoother with solid acceleration. Just survived haven't noticed any gas mileage gains yet. I will switch my other car over when it gets time.