Purchased for my 3.0 Duramax LZO. First oil change is coming soon and I wanted to put the best in it. Amsoil is the oil I use in any engine I care about.

My truck runs smoother, quieter, and just seems to glide on this oil. Much better than the OEM oil. Very impressed with Amsoil. I am changing all of my familys vehicles over to Amsoil.

Shipping was way faster than I remember before. Only downside is one of the bottles was split/cracked so the box was saturated and I was out about 1/2 quart of oil. Love the products and have used them for years. Some of the best oil on the market

This is the first time I use this oil on my non-commercial car. My Chevrolet Cruze 2018 (diesel). At the beginning of the autobile, it did not manifest itself in any way, after about two weeks, it was possible to say that my car was diesel only by cold start. Otherwise, the car has become softer and quieter to work. The difference in fuel efficiency is not noticed. High-quality production of packaging bottles, good service and delivery. The price-quality ratio is acceptable! Very satisfied! Made a recommendation to my friends!

I have Amsoil before, but have yet to use it in my truck. I bought it after having my first oil change at the dealership. They charged me $160 for a oil and filter change, with free tire rotation. Thought that to be rather steep for 7 quarts and a filter. Although, I was hoping the oil bought here would be cheaper, I was more disappointed that they didn’t have my oil filter.

I'm my 2nd oil Change using 0W-20 Diesel oil. So far no issues. (No consumption noticed). When I changed the oil (6000k interval) the viscosity still feels great. Engine sound smooth. My opinion is this is one of the best oils on the market. I'm looking forward to a long trouble free engine.

Viscosity in all situations is better, engine runs more consistent regardless of temperature. Lubricity is excellent also. Surpasses ACDelco requirements for Duramax 2022.

I purchased a case of the 0w-20 Diesel oil for my 2021 3.0L Silverado. Amsoil has always had the reputation of being one of or the best oils on the market. I have never used it mainly due to the perceived high cost and ease of availability. Now that this new truck only uses DexosD that is difficult to find locally. I ordered Amsoil and the cost was only a few cents more than the local auto parts store. So far I am very pleased with this product and recommend it highly.

Great Oil for 3.0 Duramax applications.

This is without a doubt the best oil money can buy…I know Mobil 1 makes a good product…but Amsoil is way more advanced…lasts longer & breaks down slower. But of course that is only my opinion, buy it & try it yourself, you won’t be disappointed.

First time using the oil. It was highly recommend for a diesel 3.0 by my friend.

This oil makes my little diesel truck run smoother, better MPG and just a better product.

Very pleased with AMSOIL, this product is recommended for my 2021 Silverado 3.0 duramax and very happy with it.

Always wanted to try this product for myself so I ordered and so far happy. I received your product on a timely manner.

Notice my truck running smoother. Oil performed well through to the next service.

Excellent service, delivery, customer service, and product.

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

The only problem I have with the whole experience is that the delivery driver left the order at the end of my driveway beside a busy road where I can't see end the end of my driveway from my house. Fortunately I got to it first before it was stolen.

I changed the oil my self in my new 2021 GMC AT4 diesel engine. the folks at the help line were very nice to confirm i was ordering the correct product that met manufacturer's specs. it shipped out very quickly.

This seems to be really good oil. I have not had any problems.