Customer Ratings & Reviews

I have used AMS oil since the first oil change on my 2011 Kia Rio5 and now at 78,000 miles I believe I made the right choice. Car has never used oil even at 9000 mile oil changes. I highly recommend this product.

I've been using Amsoil for over 30 years. Love it !! I get improved MPG in all the vehicles I use it in . Great stuff , I do six thousand miles between changing. Off sets the price difference.

There is really one side effect to using the signature series oil and that is everytime I get into my car now I can't tell if it is running or not now that I changed the oil. Sometimes I get into the car while it is running and push my push button to start it and inadvertently shut it off.

Bought 2016 Silverado changed oil and filter at 3000 miles to AMSOIL changed every time the light comes on to change I know it can go longer and that's great piece of mind I'm a contractor and my load is never light but it never lets me down

I've been using this Signature Series 5w-30 for the 12 years know in the same 1997 Toyota Tacoma 4x4 and it's never ran better. The motor is still like new with 397000 km on it. I do one oil change per year and that it. I'm a probably a slightly more aggressive driver compared to most and this oil is far superior to just about anything that I've come across. I defiantly put it through its paces and its never let me down. I hate to admit this but I even got in an accident once and went to exchange drivers information with the other guy with my truck running and noticed my antifreeze had all drained out from the accident. When I tried to get back into my truck my door wouldn't open even though it was unlocked. For over a half an hour my truck was running with no coolant and no way to shut off my truck. I kept an eye on the temperature gauge the whole time I was trying to get into my truck and the temperature remained in the normal operating temperature the entire time! I thought for sure it was going to cook the engine and I was ready to smash the window open if I seen the engine temperature rising. I finally gained access inside my truck and even drove it home {about 10 km} still without any coolant and the temperature never ever did go up! I give full credit to Amsoil for saving my engine and making a motor oil like no other! That was all about 200,000 km ago.

I've used Amsoil products in my vehicles for many years now. Oil, EA oil filters, EA air filters, Propylene glycol coolant, and several other Amsoil products. 2004 Scion = 200,000+ miles ( purchased new ) 2006 Toyota Tacoma = 231,000 miles ( purchased new ) 2015 F-150 = 40,000 miles ( purchased new ) None of these vehicles uses oil, or overheats, all are still going strong.

This particular product went in my chevy silverado.Works very well everything you want from your oil only downside is price but you want the best you pay for the best

I do not use any other product for autos

I have never used the 5W-30 product before, but the vehicle I'm replacing (a 2004 Hyundai with 220,000 miles) never had anything except Signature Series 10W-30. When 'Sam' got totaled, I had NEVER had to add a quart of oil between changes. Everything I own that has a motor has Amsoil in it.

It's good oil. Expensive but good. Looks clean after I change it. Can't complain

I have had 2 vehicles that required 0w20 oil. Both vehicles had variable valve timing engines and the oil worked very well for them. It allowed easy cold starts and provided good fuel economy.

I have used this for several years in all my vehicles. I think it provides the best protection against wear in the engine. Plus in the long run I think it is economical to use, change once a year or 25,000 miles.

I have used this oil before, and I'm glad I'm using it again. This oil helps my engine run better, I'm pleased with this oil.

I am very busy with family , work and play.. so to use this product makes my life a little bit simpler ., I put it in all my vehicles ..so I only have to worry about the oil once a year .. and the protection it gives is also peace of mind .. excellent product. Thank you amsoil .

BEST OIL SOLD IN THE USA, NO MATTER WHAT TYPE OF CAR YOU DRIVE

Have used this product for a couple years now. Great oil. Will not use any other oil

I bought my new 2008 Hyundia March 2008. In June 2008 I changed oil for first time miles 7240. I stared using Amsoil 0W20 and I'still using the sme oil, Amsoil 0W 20. Now the car 320337 miles and NO engine problems. I drive between 12,000 and 15,000 miles and change the filter and add a quart of Amsoil and I'm good for another 15,000 miles. I do routine basic maiintenance,but the engine has never been apart execpt for the timing belt.

Great product! I use the same oil in both my vehicles.

I've used Amsoil in my personal & family vehicles for over 10-years now. For these applications I use the Signature series 5W, and 10W-30. Since switching to Amsoil I've had zero mechanical motor issues and both engines are now approaching 200,000 miles and still running strong! I'm a DIY home mechanic so my cost per car is about $65 a year (including everything: tax, shipping, oil and filters). Amsoil is... Superior protection with just one oil change per year, per car! You can't beat that!

this is an outstanding value. great lubrication great price! always recommend amsoil to everyone I meet.