Customer Ratings & Reviews

Put this in my wife’s jeep and no more lifter noise. This is worth it, it doesn’t matter what it cost, if it keeps the motor running longer it is worth it.

My 2005 Camry runs very smooth with 240000 miles and a 4cyl. too!

I purchased this oil to use in my 2018 Chrysler Pacifica and since using I find that my engine is much more quiet when starting cold. I highly recommend it.

We wanted a oil that could stand up to the abuse of off-roading. Amsoil fit the bill perfectly.

I have been using Amsoil products for over 30 years in all my vehicles, motorcycles, and lawnmowers....whatever uses oil, they get Amsoil! Consistently superior product, fast shipping, and excellent customer service!

I've been using only Amsoil in my cars since 2000 because it's the best. Nothing more to say!

Based on testing and personal experience, this is the best oil on the market. I love that I only have to do two oil changes a year given the high miles one of our vehicles is driven each year. Our other cars go a year between oil changes.

12/10, A video i found on a media platform ran your oil thru multiple durability and stress test’s against multiple companies and your numbers came out on top every time, metal rubbing metal at a certain speed without any burn or heat marks the wear mark was incredibly clean and noticeably smaller

Great 👍

Ofcourse, I can't see how well Amsoil motor works unless I'm doing oil analysis, which I haven't yet. But, I trust that the tests that are done on and against Amsoil speak for themselves. I've been using Amsoil products for 18 yrs and plan on using their products for the rest of my life...

This is great oil, the long drain interval is awesome! I’ve been using amsoil for over 20 years, and I couldn’t be happier! Thanks for great products!

I am running this oil in my Toyota Tacoma with a V6 and it does what it is advertised to do. i will leave it at that but will lastly say, my engine stays clean internally and that says a lot.

I really like this oil and wouldn't put anything else into my engines. Add some militech or best oil(?) and get the most out of a refill. Just be sure not to let it run too long otherwise the oil thickens as it ages. Well, it did in my 454SS Chevy truck running a heavier viscosity oil so take that with a grain of salt. Other than that it is a good buy.

Great oil. It meets the Chrysler specifications and my 6.4 Hemi sounds happy with it. I occasionally have it lab tested during a change and the results are always phenomenal.

Excellent performance and protection

Started using in my father’s car … which is garage kept 90% of its life… mint 12 year old Chrysler 300 under 10, 000 miles , switch over to Amsoil signature series. With a wix oil filter… Runs smooth as glass … A+ I’ve been using this product Amsoil signature oil 5w 20w in my Super duty for 18 years … motor runs incredibly smooth n gas efficiency due to this oil … it’s my choice over all others.

I believe in the products, all have worked well for me

My three automobiles all take 0W-20 Signature Series Synthetic Oil. I am shocked that all of my oil changes are unbelievable! Each time I have drained the oil, I could still see the life left in the oil. I change all of my oil at 10k, on the dot every time. There is not better oil to use!!

Great stuff. Slight increase in oil pressure and motor sounds noticeably quieter.

Product came as described. Now just to put it to the test for 25K Miles.