Customer Ratings & Reviews

The signature series 5W30 from Amsoil is the go to product for me in a stock LS engine configuration. I Run a stock LS3 in my C5 corvette and I push the engine very hard in various racing events. I trust Amsoil over and other product at any point between oil changes. There is never a time when I am concerned about the engine protection that this oil provides.

Order arrived very quickly. I also received a handful of stickers. Small thing I know, but really makes the difference.

AmsOil is the best oil on the market hands down. Even my wife notices the deference when we started running it in her car.

I highly recommend Amsoil for everyday use. Best choice I have ever made.

I have been using AMSOIL products since 1982, and I recently placed this in my 2020 Honda 2.0 liter Accord. As usual, it is performing perfectly. I know from the extensive testing I have seen, done by AMSOIL, it is protecting the engine well, even if quick acceleration is required leaving our neighborhood when the engine is cold. The vehicle has far better fuel efficiency because of it, averaging 26 MPG in suburban conditions, and 36 in long-distance driving at 65 to 70 mph.

Easy Winter cold starting!

Have purchased this for my 2017 Mustang GT 3 years running. I don't see a major breakdown in the oil.

All I use in my vehicles are your products as my son . Your products are the very best .

Great purchase experience, and you can tell AMSOIL cares about the quality of their products right down to the customer experience and packaging. Not shy to make bold claims about their lubricants, and for good reason. Have replaced all oils I've gotten around to changing thus far in my new 2020 Ford Raptor with Amsoil products from the diff oils, to engine oil. I'm sold on the oils for the engine and diff after 3,000KM - smooth running. I spent countless hours researching the best synthetic oils I could find, and contacting guys at race shops who swear by Amsoil and nothing else. Sold ... lifelong Amsoil customer now, and what's great is the points system and the fact that I can order everything from lubricants, to oil filters, and air filters all in one order delivered quickly. Awesome. Highly recommend

This 5W20 SS Oil is the best long lasting Oil I’ve ever used! I have Two 2005 Ford E-250 Box Trucks and both have over 400,000 miles. I have noticed cold start chatter GONE! These trucks restart 10 to 15 times a day Thanks to Amsoil I look forward to seeing 1,000,000. Miles in the future. Life User Henry J

The best oil and filters you can buy.

When I started doing my own oil changes(10 years ago) I switched to this. in my experience my other maintenance costs have mostly disappeared.

When I started doing my own oil changes(10 years ago) I switched to this. in my experience my other maintenance costs have mostly disappeared.

I have used this for years. It has never let me down.

Great oil. Runs cool in my Subaru wrx. Extremely good cold starts. Even when I get on the car it sounds healthier

I have been using AMSOIL products for 39 years. This oil product works perfectly in my 2017 Honda Accord. The fuel economy improves when using AMSOIL. The appearance of any wear is minimal. There is virtually no oil consumption.

I have been using AMSOIL for 39 years. This is used in my 2018 Ford Expedition Max with the 3.5 liter, 400 hp engine. I tow significantly a 7000 pounds loaded trailer. Excellent mileage, 9.2 towing; 20.5 solo during travel. No oil consumption. Smooth power. Cool running. What is not to like.