This product really works!
Customer review by Frankhoca
My 2004 VW Jetta started to show the check-engine sign with a code P0420 which says: ''Catalyst system efficiency below threshold bank 1''. I started looking in the internet to know what was the meaning of this and found out it was a problem with the system that regulate the exhaust emissions. Then I found this product that was supposed to clean the system and solve the problem. I poured it into my half-empty gas tank, filled the tank full and drove the car in the highway at 55-60 mph for around 20 minutes. Next time I started the car, about 2 hours ago, the check engine sign was gone! And I even feel the car run smoother. This product really worked for me, I highly recommend it!
Was this review helpful?
Thank you! You have successfully submitted feedback for this review.
Would recommend to a friend?