Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 3L (120018CAT)

This product really works, it’s worth the try…

Ordered 3 litre Cataclean jug. Got my shipment promptly and it was still sealed and in good condition. Very happy with my purchase

Have used a bunch of this stuff. Sometimes it works great, others doesn't do anything.

Jury is still out. Unsure if this is “snake oil” or not? But I have a 16 y.o. Vehicle 130k+ w/a check engine light & a bad catalytic converter code. You could spend $30/16oz bottle @ your auto parts store or spend $75 for 4+ treatments. I’ve used this 2x b4. First time, check engine light came back pretty quick. 2nd time I cleared the code & my vehicle passed emissions. So the plan is to add this quarterly, up until next emissions inspection. Fingers, toes, eyes crossed. Way less expensive than a new catalytic converter. Bought me another year, so far.

I highly recommend this... Had issues with my 2014 vehicle with very high miles. I had my car checked as well as the PS error code etc. Was told I needed a new catalytic converter. I tried this in desperation and in effort to avoid that cost. I tried it at 1/4 tank as described and also switched to ethanol free gas. That worked a miracle for me. After just one treatment my engine light turned off. I continue to use that gas and then did 2 more treatments over the year. (Generally every 4 -5 months. When I forgot the next time and the error code happened again, I did the treatment again, it cleared and as stated I've never used regular gas again. 1.5 years later no issues, never changed the converter. So grateful!!! (My only concern /negative is the price of this stuff more than tripled! ) that's not good at all.