Customer Ratings & Reviews

Engine is noticeably quieter and smoother!

The best there is! I've been using amsoil in all of my cars for years. I drive my Honda Civic about 25,000 miles a year and have used their Signature Series oil (25,000 mile drain interval) combined with an Ea oil filter since the car was new. With 230,000 miles on it the engine runs, literally, as well as when it was new. Starts easy, gets the same gas mileage, no loss in power or response, and uses less than 1/2 quart of oil, over 12 months. I also use their manual transmission oil and yes, the car shifts like new. No noisy synchro or leaky seals. I use this particular oil in my 2012 Chevy Volt. At 11,000 mi/yr electric and 4,000 mi/yr gas, I can easily go the full two year drain interval recommended by GM. And, I use their Z-Rod oil in my '64 Chevy Corvair. Did I mention that I love amsoil?

I run this in my Subaru Outback. At 63K miles, its running strong without a hiccup. I’ve a 120 mile round trip commute and this oil greatly extends time between changes and is overall a superior product when it comes to maintaining my vehicle.

Amsoil is by far the best oil on the market. I’ve used it now for several years and will continue to do so.

Best there is !

Amsoil has the best products hands down , I use there products on everything I own

RECENTLY PUT 10W40XL IN OUR BELOVED 1985 MERCEDES 300D (DIESEL).ALMOST RIGHT AWAY I NOTICED MUCH SMOOTHER AND COOLER RUN.i WOULD EXPECT INCREASE WITH ECONOMY AS WELL I PLAN FOR TRANS AND DIFF CANGE TO FLLOW.WILL KEEP UPDATE. VERY PLEASED,THANK YOU AMSOIL!

I purchased this Amzoil product for my Dodge Charger V-6 and just changed the oil this last weekend but I'm rest assured that it will treat my Charger as well as my motorcycle. I plan on changing the transmission fluid with Amzoil in the near future, the Charger has the split shift eight speed auto and I think it could use some of their special synthetic fluid for the tranny, can't hurt.

I use this in all of my trucks and cars here in Utah. It’s a great oil for year round use!

I use Amsoil products in everything with a motor i own. So many benefits, i have never had any down time. I have 190k on my truck runs cooler, increased fuel milage, no dry starts and its made in the USA. I usually use signiture, we put so many miles on it and im not afraid to drive that across the country.

Made the switch to Amsoil in our Honda, and the idle alone sold us. The 2.0 doesn’t even feel like it’s running it’s so smooth. Switching to Amsoil in all 6 vehicles and not looking back!

I have been using different auto amsoil oils since the 1980's .... I just wish the shipping. To Hawaii. Was more reasonable for a order over $200.oo

this product has made my truck run more efficient I'm very satisficed.

Very good protection for my 2017 KIA Sportage. I love the peace of mind knowing that you’re feeling well protected in your engine for a whole year plus saving money

I recently made a purchase and forgot to add my free shipping code, so I E-mailed customer service to see if there was anything they could do,and sure enough they refunded the shipping cost to me. Now that's the kind of people we all like to deal with. Most businesses would have said all sales are final. P.S. they're products are fantastic also.

We bought a used Volvo V70 with over 100k miles. The check engine light was on. the cause appeared to be the variable valve timing system. A very reputable shop pulled it all apart and reset everything to factory specs. they didn't find that the cam timing was wrong. The variable valve timing is actuated using oil pressure through small passages way up in the top of the engine. you could see that the engine had build-up by looking at the oil filler. 100,000k of cheap oil had left deposits and gunk. Now we are on our fourth change using Amsoil and the light is intermittent and even the oil fill area looks cleaner. Years ago Mobil One cured noisy lifters on my 1971 Cutlass. synthetic oil solves problems.

I have over 264,000 miles on my truck and I wouldn’t run anything in it but AMSOIL.

I started using XL 5w30 in my 2001 Silverado a few years ago and only had 89k miles on the clock. I now have 215k miles. No leaks, engine still sounds like a sewing machine.