Customer Ratings & Reviews

The enginer runs so much smoother.

I've used this oil in my 2004 Caravan from the point of new. I used it for work and changed oil in the 20,000 to 25,000 increments. The van now has 247,000 on it an it leaks a tiny bit but uses none. At 8,000 miles I need to add 1/2 a quart. No problems here and I use it in all my vehicles and equipment.

Stand behind Amsoil 100% I'd put it in every vehicle I have but some leak so bad it would be to expensive. I would NEVER run anything but Amsoil in a vehicle with good Engine and Transmission.

I was using another full synthetic because that's all I could find in our area. Noticed the other brand would burn off and I'd have to add oil about every 2nd tank of fuel. I switched to amsoil and the burning off stopped. Noticed no difference in fuel mileage or HP gains but like I said, I was already running a full synthetic.... Good stuff!!

Pure Butter!

I use only Amsoil in all my vehicles including my garden tractor. I use the oil, power shot, the Amsoil oil filter's etc. I love it for it's protection and the life of both the oil and filters. The power shot is the best stuff on the market to protect your small engines from water and ethanol. It keeps the system and carburetor clean. I had problems with water until the power shot and never again in the past 6 years. I wish it was in a bigger bottle at a better price cause the small one goes so fast. I live on a budget but make sacrifices to buy all my Amsoil products for my tractor and car and truck. I tell everyone to buy it and have most of my son's using it. The oil last so much longer in both vehicles and especially my garden tractor.......I use to use Valvoline but only now for top off if I don't have Amsoil. The large stickers are on my vehicle engine covers and on my tractor engine cover so others can see and know to a mechanic nothing but Amsoil goes in my engines and gas tank for additives......

I only use Amsoil in my BMW Honda and Toyota

Seems to be working great in my subaru Forester!

I use Amsoil signature series 5w-30 on my Toyota Celica GTS and it makes my car runs great. My car is around 250k miles and I don't have oil burning issues on my vehicle. During the winter time it starts smoothly and it doesn't hesitate to crank. Oil intervals can go longer than 4k to 5k but I usually change them at that point since I drive over 70 miles a day in rush hour. Great oil and great pricing.

Much better than expected.

I used this in my '15 WRX which requires a high shear stability, synthetic oil. This oil was recommended by many websites and forums as one of the top oils you can use. Worked great while I had the car but I plan on putting it in my new Infiniti as well.

I have been using Amsoil for over 35 years. Our current commuter car (120 miles per day) has 265K miles and still runs like a top. Uses very little oil (less than a qt per change)

I use amsoil, car, pickup, equipment, lawn mowers, tillers, and chainsaw. Protects engine and less time changing oit.

I have this in my 2010 caravan. Have roughly 10k mi on the oil and it has discolored to a color I'd really want to change it at, but the dealer I got it from assured me that even though the oil will turn colors that it will NOT breakdown! So I'm trusting his word

Have used AMSOIL OIL for years. 2003 SVT FOCUS has 332,600 miles on it. 2011 SAAB has 105,200 miles on it. Excellent products.

I use this product on my chevy suburban 1500. Gotten better gas mileage, and of course longevity. Burn off is very very low. No other oil comes better!! This is the best. It makes Mobile One look likes water to synthetic oils. It takes a lot of miles to burn off this synthetic oil. Up to a year or 25,000 miles before changing the oil! Worth the money and investment!!

I have a 2008 Lexus v6 and recently checked mileage on 300 mile trip. Checked and double checked, 34 plus MPG. Amsoil Signature in motor with KN Air filter. VERY IMPRESSED!! Carlitos

Used to run this in my stock sti motor. Now it's built and I run the 5w40 Euro. Love all your stuff never had a issue.

Best synthetic on the market hands down

I don't use any other product in my vehicles, only Amsoil Baby.. if you want the best buy the best here it is Amsoil.