This stuff is a scam!
Pass Your Emissions Smog Test Guaranteed with New Rislone® CAT Complete Fuel, Exhaust and Emissions System Cleaner
Doesn't work nor does the links to get the guaranteed refund if your car fails smog test. You guys posted this in February how great this stuff was. Its a scam and so is there links to their refund sites.
Erica Baker shared this idea