Cataclean - 16Oz. Fuel/Exhaust Sys Clnr (120007-6)

I own a 2006 Nissan Armada V8 with over 180K miles on it. A "Service Engine Soon" message appeared on the dash... code 420 (problem with catalytic converter). I could have taken it to a repair shop and paid them a $280 diagnostic fee and then potentially another $1800 to replace the catalytic converter, but I didn't want to put that much money into a vehicle this old. I decided to give Cataclean a try. The instructions said mix one 16 oz. bottle with every four gallons of gas in your tank. I bought a six-pack to mix with 24 gallons of gas (tank holds up to 28 gals). It took about a week to run that mix through the engine, after which I refilled with gas only. I could have cleared the code to see if it came back, but I decided to see if it would go away on its own first. In less than 2 weeks time, the "Service Engine Soon" message dissappeared and hasn't come back since. During that two weeks, I monitored my miles per gallon and found that I was now getting exactly 20% better mileage! There was also a noticable improvement in responsiveness and acceleration. I wasn't really expecting all that, but the fuel injectors were obviously in need of a good cleaning... and they obviously got it! Six bottles of Cataclean wasn't exactly cheap, but it was much less than the alternative. I'm very pleased with the results and can highly recommend it.

Good stuff

Bought this product last year because my 2016 Buick Encore engine light on fail emissions. Mechanic say might be cost more than $1k to replace catalytic converter. Use 1 bottle every 6500 miles oil change. After 3 bottles the engine light is off and car run smoother.

Car runs much better. Product did what it claimed to do.

Engine light went off.