ACDelco GM Original Equipment 10-3007 Top Engine Cleaner - 13 oz Aerosol

Have a 2002 Hyundai Accent that for the past 4 or 5 years, has just been chugging oil like it's going out of style. Tried this two months ago not expecting anything. Removed the spark plugs and absolutely soaked the pistons all day. Sucked out remaining residue before reassembling engine. Ran it to blow out any remaining stuff. Like Seafoam, the exhaust billows smoke and takes a bit to clean out. Drained, replaced oil and drove on. Well two months later, the oil level is still full! Last several oil changes before, I'd get maybe 3-4 weeks max before the oil was low again. Absolutely amazed how great it worked. Of course results may vary and others may not get as lucky as me. But for fellow Hyundai owners, it's worth trying.

Easy to use and cleaned my daughters throttle body up like a new one on her older Kia with almost 200k miles on it. After cleaning it all the carbon buildup was gone and the car actually runs better.

This was purchased to clean and treat a Saturn engine. The process was simple. The results remain to be seen but in general the cleaning effect was immediate on the upper engine. The soak to clean the oil control rings is in progress. I'll update when it is done.Update: After the treatment.the engine smoked a great deal while the cleaner and carbon was burned or flushed out. This was done to a 1996 Saturn SC2 coupe. The early Saturns were infamous for oil consumption. After this treatment the car was driven daily and on trips from southern Arizona to central Utah. In the five years since this treatment the oil consumption dropped from ~2 l between oil services to less than1/3 liter.The treatment cleaned the top end and rings enough tonearly eliminate oild consumption between services.

I used this on two vehicles (two separate cans) today: 2010 Chevy Suburban 5.3l with 235,000 miles and a 2015 Buick Enclave 3.6l with 124,000. The 5.3 smoked a little bit, but it recently had a professional induction cleaning, so I didn’t expect it to smoke much. Even still, after today’s cleaning, it idles much smoother. Now, I don’t think the 3.6l has ever had an intake cleaning, and it’s got direct injection…that thing smoked like crazy for nearly 25 minutes of idling. It was so bad that I will likely clean it a second time. I can’t say whether MPG has improved, but the 3.6l sounds much better.While doing this is not hard (usually just requires a screw driver to remove the air cleaner from the intake), it is not for the faint of heart. Your engine will sputter, choke, and probably backfire as you force this spray down its throat. Still, I’m now a believer and will use this stuff once a year on all of my cars.

I spent 100s of dollars trying to fix a misfire on my 97 jeep tj with no luck. I was getting discouraged and I saw a video on YouTube of a guy using mopar brand combustion chamber cleaner. I was unable to find it so I bought this and it was quite a bit cheaper. Please save yourself the stress I went through and buy this first. It’s simple to use. You disconnect the breather and spray directly into the throttle body while engine is running. If it stalls restart. Once the can is empty shut off and let it soak for 15 minutes then restart. Do this outside as there will be a lot of smoke. Once smoke clears take it for a drive.

used this to clean where the air intake meets the engine block and several other dirty grimy areas. works good but smells strong

Toss us the second time I’ve done this on my 2014 Silverado. It really seems to burn off that carbon when you finish the process.

I really like this product because it made the car smoke, so I kinda know it did something.