Gumout 540028 Foaming Intake Valve & Turbo Cleaner, 11 oz – Powerful Foaming Spray Cleans Intake Valves, Turbochargers, and Combustion Chambers for Improved Engine Performance and Fuel Economy

Great product, the spray is more of a lever pull than a button. Mpg instantly improved as well as acceleration. Seems like I will add this to my big service intervals

The foam left quite a bit of residue but so far so good, used in on my Mercedes E63 AMG-S twin turbo direct injected V8 and it stumbled and rumbled a little bit but once all the foam was sucked down and I revved it to 4500 RPM it cleared out and a decent amount of smoke came from tail pipes and now it's running fine again with no C.E.L. on and no damage to turbos as of yet

Worked very well on my vehicle, it ran much smoother and had much better performance after using it. I would have given five stars if it was not for the spray mechanism working poorly, had a lot of trouble with it.

As always, product works as it should.

I used to use CRC GDI intake cleaner. Then I tried the expensive STP cleaner with the automatic timed dispenser. I decided to keep the dispenser and see if any other product cans fit. Low and behold...I found that the Lucas Deep Clean GDI cleaner fit on the dispenser while the CRC can did not. Then the Lucas started becoming hard to find and the price went up. I tried this Gumout foaming cleaner and the can actually fits the dispenser! Gave it a shot yesterday. I have rigged a means of connecting the tube to the brake booster hose with an air hose plug. I advise doing on a windy day as this stuff blows out a ton of white smoke that smells as you'd expect. Calm evening so the stuff lingered a bit. I became concerned neighbors would be alarmed. But the can dispensed fully in a shorter amount of time than other cleaners. It immediately set off some codes which I cleared and they haven't returned. I took a good vigorous drive after the treatment and codes never returned. Instructions don't say to turn off car and let sit... just says to idle car for 5 minutes then take a 15 mile drive. I've tried the Mopar foaming cleaner once and I see Amsoil has their Power Foam cleaner which is around $13 a can plus shipping which is probably about $8 under $100. So this Gumout stuff is a good deal and car is predictably more responsive and idles more smoothly, similar to other dedicated cleaners and seafoam I've used in the past. I do prefer the foam vs. liquid as I believe it may do a better job of contacting the surfaces that need cleaning.

No entiendo porque no sale el producto solo pude usar 1 dedo de la lata y quede a empezar no se si es defecto de fabrica dado que e usado muchas de estas y rara vez e tenido problemas espero y me manden una nueva o varias para dar una buena calificación y terminar el trabajo empezando

If you don't want to go the walnut blasting route, this does work. If I'm doing the service again in another 40k-50k I'm probably just renting the equipment and walnut media to get through it 2x to 5x faster... cleaning all the valves with little picking tools took FOREVER and I only have 4 cylinders lol

Works great