Customer Ratings & Reviews

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I enjoy thus product to help clean out the engine before a fresh Amsoil oil change.

I flush at every oil change. Honestly. Just try it. Truly the best brand on the planet.

Wonderful

One time use worked to eliminate a lot of sludge, after I physically cleaned most of the heaviest deposits. Good choice to start using Amsoil Synthetic Oils. Then the formula's will clean every oil change.

Makes good sense to clean up before changing oil.

Used on my car and gets better mileage

Does a very good job on cleaning internals of the engine

I use Amsoil Engine and Transmission flush on every vehicle I have, used or new. The latest vehicle I used this on was a 2016 Chevrolet Cruze LT. After warming the engine and letting the "flush" do its job, I removed the oil drain plug, and clumps of matter were literally dropping out of the oil pan. You never know how a used vehicle was maintained by previous owners prior to you purchasing it. You expect there may be some issues that you will encounter along the way, but your engine and transmission are the life of your vehicle. Using Amsoil engine and transmission flush along with Amsoil signature series motor oil gives me the best odds of maintaining the engine from this point forward and getting many years of service out of the vehicle.

New to AmsOil and my rep recommended I use this before draining old oil for first round of AmsOil. Followed the directions and feel it did what it said it would.

Directions say to also use in transmissions. This cannot be right because only about a third of transmission fluid will drain because the other two thirds is still in the torque converter and valve body. Years ago, there was a 1/4 pipe plug in the torque converter that allowed it to be drained, but not in late model cars. This can only alter the viscosity and fluid characteristics of the undrained fluid.

This is an outstanding engine oil flush, and works extremely well on higher mileage engines removing deposits and freeing up sticking rings and cleaning oil passages. Using it now regularly for best engine performance!

Great stuff!!

Great product, flushed out all the oil. My oil pressure stayed at 40.

On my new to me car with 137k on it threw the engine and transmission cleaner in her and after 15 minutes drained and replaced the filter. Added four and a half quarts of 0w20 Amsoil OE grade oil and she runs smooth but she is noticeably quiter

A very good product. I recommend if you were changing over to Amsoil, used this product first to flush anything out of your engine. You will be amazed at what comes out of your oil pan

Recommend using this product for oil changes if you want to get any possible gunk that might of built up over time. i use it every oil change so there is less contamination when i put in the new oil.

I love it. Not much to say. It works good, it's affordable, and it's easy to use.

Amsoil flush clean your engine so the oil can do it's job better.

Great product!