Customer Ratings & Reviews

Use it every time I change oil in my 2004 Chevy Silverado 5.3. Works great.

Well I use this ever 3rd or so oil change in hopes it does something

Engine seems to be running smoother, and hopefully it’s cleaner.

Another Quality Amsoil Product that I use only after frequent long winter idling or extended oil change miles / time. Good for getting an engine using dino oil ready for pure synthetic oil from Amsoil! Follow the directions and enjoy the benefits!

The amsoil Flush is a good Product flush the motor in the transmission up I will continue to use the flash on my vehicles in other peoples vehicles

I figured I'd give this engine flush a shot after buying a used car cheaply with an unknown service record. Obviously there were a few red flags up when the cash was handled, but even if that car burned to the ground on the way home, the deal I snatched it for made it worth the risk. I figured I'd try this flush prior to moving the car over to Amsoil synthetic oil as an attempt to flush out anything unwanted that might be residing in the engine. I poured the product in, waited the recommended amount of time, and let the oil drain for much longer than normal. The oil that came out was incredibly black and dirty, making my decision to give this a shot warranted in my book. My hope is that with a "clean" slate, I'll be able to continue driving this car for years to come. Time will tell, but this product is highly recommended.

Great product to use to flush out the system prior to changing the oil. Pour in, run for 15 minutes, change oil, really cleans things up nicely!

I use Amsoil products to lubricate every vehicle I own as well as every piece of equipment I own with an engine or motor. I see proof that all of these items get unsurpassed protection. The Amsoil engine/transmission flush followed by Amsoil synthetic oil was responsible for saving me thousands of dollars for an engine repair on my mid-mileage SUV. I won't use anything else! On top of this, I save money over local-purchase products by buying Amsoil every time. Protecting my equipment and saving money is a double win for me.

I used Amsoil flush in my new 2021 GMC Sierra (6.2 engine)and my 2011 Buick LaCrosse (3.6 engine) My first use was in my Buick with 157,000 miles and I could see the difference in my oil change with the gunk that was in my engine. My engine seemed more responsive and my gas mileage rose from 21.5 to 22 miles per gallon. I use it in my GMC to maintain the engine inside. I have used many Amsoil’s products because they are simply the best. Thanks Amsoil.

As a automotive painter I know that the best job is one that has been prepped properly. That’s why I use Amsoil Engine Transmission Flush before using Amsoil for the first time on gas engines and usually every time on my Diesel engines. It really cleans out the varnish and sludge that is harmful to today’s engines and plus preps the first time Amsoil use engines! It’s part of my oil change regimen and it should be yours as well!

Improved my gas mileage

This cleaner while engine flushes have a bad rep, this stuff is amazing. I never knew my car would have so much oil and valve deposits. My oil filter came out at 3.8 pounds, normal weight for mine are 14 ounces. My idle is quieter and my car feels more responsive. Highly recommend

Ordered product and received it quickly with no mishaps.

Great product