Charles has a 1992 Chevy S-10 pickup. He needed to register the truck so he had to have it pass a California emissions inspection. The first time he took it in for inspection it failed badly...what California calls a "gross polluter". A friend of his recommended that he try Green Fuel Tabs™ and drive for a few tanks of fuel, and then go back for another emissions test. Charles took his friend’s advice, used a Green Fuel Tab™ each time he filled up for the next four tanks of fuel while driving his truck as he normally would. Charles took his truck back for another California emissions test inspection, and it passed the test easily this time.