2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner

I was skeptical about this product but I was surprised that it worked. I added an entire can to my gas tank when it was half full and drove normally for 150 miles until the tank was almost empty. I fave since driven 100 miles and the check engine light has not come on. The catalytic converter and oxygen sensor code have not returned. My car was inspected and the emissions check was good. This stuff works.

This product not only cleans the exhaust & catalytic converter but also clears out the soot accumulation in your turbo chargers. One of the better products on the market.

I am revising my review. The product worked initially, then code came back, and now codes gone again after driving it a few days. So I guess it has worked better than I thought when codes came back. Not sure but I will monitor and revise again if needed.

Did exactly as it was claimed. Check engine light and code were for O2 sensor on my 3.5L Eco-boost engine...after running two cans through, check engine light has gone away and has not come back on in two months. I did run an extra two cans through, but overall very satisfied with the product. Will definitely buy again.

Short term repair results.

It’s always nice to get lucky. Check engine code said catalytic converter was bad. Online estimate was $2,000 for my Honda CRV. YouTube videos said it was worth trying a cleaner first. Product reviews said this was a good choice. I ordered and received same day. It’s nice being close to an Amazon warehouse. I added one bottle to a 1/4 tank of gas and headed down the freeway. 30 minutes later my check engine light went out. Awesome. Headed to the state inspection station now.

This did NOT work at all. They shouldn't advertise that it is to help emissions. It's FALSE advertising. They are LYING. I contacted them and let them know that it didn't work. Do you know what they said? "Your catalytic converter is crack, melted, or damaged." My catalytic converter is NOT damaged at all what so ever. That's just their cop-out for everyone whose P0420 code did not get fixed after using this. Bull ROAR. Absolutely disgusted and disappointed with the company. Don't even waste your money on this. Do not even, it's a scam and a grift. Brilliant snake soil salesmen this company is. You have been warned.

I ran two of these through my 1999 Dodge Dakota and the check engine light stayed on. Thought I had wasted my money then remembered you were supposed to clear the light and see how long it stayed off. Zander at O'Reilleys told me they couldn't clear the light for anything but to take positive lead off battery for thirty minutes. Did that. Cleared the light, driven fifty miles now and no light! Getting some more now to clean my 02 sensors on 2006 Hyndai Tuscon. Hope it works as well. Saved a bunch of money!