Really impressed. Motor running smother. Increased gas mileage. Highly recommend.

I put my car in storage and when I started it up after sitting for 7 month there was no tickies, like with conventional oil.

Use this in my buddies subaru, even though it'll blow up eventually, it leaves peace of mind that the maintenance has been well taken care of.

I've been using Amsoil products for several years and have had excellant results. I recently purchased a new vehicle and have started using their Signature motor oil with excellant results. The engine is more quiet and performance has been great. I know it seems like a waste to most people, but I change oil every 5000-6000 miles, when I do the oil is pitch black and although many people would think that's a bad thing I believe it just proves the oil is doing what it's supposed to do. It's carrying the contaminants and dirt in suspension. Used in conjunction with an Amsoil filter I feel I'm doing the best thing I can for my new vehicle and I expect ma ny years of reliable service from the engine.

High quality and with stands the heat and abuse my rzr pro xp turbo with 280-300hp can dish out

2015 Jeep Cherokee Trailhawk. 127,000 miles on the 3.2 L engine. I have never used anything except the Amsoil synthetic motor oil. My vehicle runs like new and performs like new. I intend on keeping this vehicle until it does die. At this point not really sure when that would happen. I’m expecting well over 200,000 miles. I would never even consider using anything except this. I also have a 2006FJR 1300 motorcycle that has also used nothing but Amsoil. I can say the same thing about that motor like new And no intentions of getting rid of it. AMSOIL oil and filters are both used on both vehicles. My wife’s 2015 Cherokee I can say the exact same thing about. Except it only has 89,000 miles. No regrets and never turning back.

The absolute best on the market, in my opinion. Keeps my car running and operating at peak performance. With AMSOIL I don't have to worry about protection for all the vital moving parts of my engine with their top of the line formulations.

Very fast shipping and great prices

I have put thousands of miles on Amsoil products. Oil analysis has been great from vehicles with 50k to 400k miles. I will always recommend Amsoil for people who want to keep their vehicles.

I have been using this 5w-30 for years in all my vehicles. It seems to pretty much cover every popular make and model. It's been around for years, before the ultra thin high efficiency fluids, that I just don't trust yet. This is the baseline fluid and as always yielded better than factory fuel economy and a noticable reduction in operating temperatures. Not forgetting mention every time that I have used this fluid I've been able to get high mileage with zero failures. This is pretty much a safe universal oil for most vehicles(yes, even though they are pretty much recommending oil with the viscosity of water now). This will keep a healthy and well built motor into the 200k arena with ease.

Skip OEM Jeep oil and go straight for this. It makes the engine perform and run much smoother than any other oil

I've been using SS oil in my cars and lawn equipment, anything that uses oil has Amsoil in it. Started over 20 years ago when some of my fellow workers in the construction industry were telling me their experiences with it. I switched a small truck I was driving to work to Amsoil SS oil at 108,000 miles used the sampling system until about 185,000 miles. At that time engine was cleaner than the beginning sample at 108,000 miles. At 265,000 miles had a valve sucked when son tore down engine to put heads on it the block was like brand new no carbon or sludge. The timing chain was like new also. Got it back together and drove it until it had 375,000 miles. Not because of engine but because other things wearing out. My son, my son in law, and myself use nothing but Amsoil. Also have some friends that use it.

Awesome product I use nothing else

Same as last review

Bought it for my ecoboost mustang 🐎 Runs smooth and nice 👍

Switched to signature series with my last oil change about 1,200 miles ago. Love this stuff, slight bump in mileage, truci running better than ever.

Have been using Amsoil for about 16 years now and am impressed with the performance and cold weather viscosity of this product. I highly recommend using Amsoil.

Nothing better for my vehicle

I have a 2022 Elantra N and this is the only stuff I put in it. After a couple of headaches when I bought the car brand new at the hyundai dealership their service team is incompetent. Twice they almost put the wrong weight into my car arguing with me that I was wrong when I told them look at the oil cap uhhhh Ya. So I swore I would do all my maintenance and work to my car myself. Besides bodywork. Car drives smooth and I can tell it likes Amsoil by the way the car feels.

:)