Hi-Gear HG3270s EZ Emissions Pass and Catalytic Converter Cleaner - 15 fl. oz.

My car was displaying a P0420, it is a 2017 so I am doubtful the issue is with the catalytic converter, but this was the cheapest place to start to see if it would make the light go away. I put it in on a full tank of gas and after giving it a good drive, the lights did go away. They stayed gone for the entire gas tank. I waited until the tank was just about empty before putting in more gas and shortly after putting in the gas - the light came back. Still trying to determine my actual issue, but I'm beginning to believe it may be temperature related. I was only having issues when it was really cold out. It has warmed up now and the light is gone. Fortunately for me, emissions testing isn't required where I live - I'd just like to get rid of the light for my own sake.

This cat cleaner work's and is a good value, you may have to use several times , depending on the condition of your cat cleaner, its's half the price of the other name brand's, but work's the same, my opinion it work's better, ive tried them all, it's more of a preventive measure ,and cleaner, your cat cleaner must be kept clean for the performance of your vehicle, must start out with a reasonable good condition cat cleaner to be most effective, must keep using to keep the emission system clean, i use it about 4 times a year in both my car's 2008 focus, 1999 cavilier, the cavilier has over 100k and passes emission testing every time, so does the 08 focus

Had a car that kept throwin the catalytic converter code bought this product follow the directions no more problem. The car I have is a old 2002 Toyota Camry V6 with 309000 miles on it the catalytic converter was only about a year and a 1/2 old this product cleared up my problem haven't seen a CEL since I used it recommend to anyone!

Doesn’t seem to be working.Will provide update later

My light just came on, pulled the code and thought using this might help, i don't think it did anything at all. wouldn't recommend this product

Trying to clean out catalytic converter and get check engine light to go off. Codes were read. No results after usingas prescribed. Tried multiple cans.

Not working

The best product

Done what it says

Snake oil

Bon produit pour redonner de la puissance au vehicule

car silver tone 14mx9mmdecorative line, i rate it zero, would not stick because the red line you pull off the white part that was suppose to stick. when it arrived and i opened it instead of 14m there was 7.5 m x9mm will not buy again