Mr Gasket 120009 Cataclean Fuel And Exhaust System Cleaner 5 L. Bottle For Truck/Fleet/Industrial Use Safe for Gasoline/Diesel/Hybrid Vehicles Cataclean Fuel And Exhaust System Cleaner

So far my light has not turned on again. Car runs smoother now. I put about 64oz into a full tank of gas and by the time I was almost empty the car ran smoother than ever. If you buy the 16oz bottle and add it to a quarter tank like usual it might not be enough run time to do it's job properly. I've heard you have to used it twice sometimes for it to work. Well my solution was to just buy this 75oz container for just twice the price of the 16oz at the local auto parts store and be able to use it twice on full tanks instead of just a one time quarter stank use for quarter tank of gas. You really need to run this stuff a while for it to work. I would say on a full tank or at least half a tank. I just quadrupled the amount comparative to a quarter tank 16 oz dose. since I was adding it to a fully tank (4/4).

It's a little pricey but worth it to keep vehicles running good. Great to use if you put alot of miles on your vehicle driving constantly. Also good to use in vehicles that have sat for a while. I put it in all my vehicles 2 to 3 times a year maybe more if I take 1 on a long trip.

check engine light went off, best way to clean cats every 10k miles pour one bottle in gas tank...best deal... for 1 gallon... store in cool dry place...follow instructions, one bottle when gas tank is only quarter full or less..Please follow instructions when gas tank is only 1/4 full add 20 oz. of cataclean to 1/4 tank of gasoline... Very small quantity is added ... 5 litre bottle will last you for twenty times...

A 100% scam. Does not work at all. Be aware. I do not understand some positive reviews. Used in my 2007 Ford escape hybrid and honda civic 2009 hybrid. what a frustration.

Looks like it is good product, I didn’t see any mileage improvement, I hope it is cleaner my fuel injectors and inside line

WORKS! This is the same stuff that is sold at Auto Parts stores at about 500ml for $25. You can store it and use it to clean your system through out the year as simple maintenance.

I put. 8 oz. . Bottle once a month at a 1/4 tank then drive on highway for half hour then top off . Truck runs clean no check engine light ever on 2002 Dodge Dakota 3.9 V-6.

Not sure if it works but I'm guessing it cleaned the catalytic converter. The only way to tell is to take it off what I'm not going to do to check. But I guess it did some good.