I'm so impressed with the super fuels product I became a distributor.Back in the late 90s I was introduced to super fuels @ WDW LBV where I worked in the golf cart shop as a mechanic.David Liles gave us 'the mechanics from small tool shop & the cart shop a detailed demo of the propertys and uses for super fuels"One example was a weedeater that run badly smoking & sputtering,the carburetor was adjusted as far as possible & needed replacement,David put 2 oz of superfuels in fuel tank,restarted the twocycle weedeater,run it for less than a min.At first it ran as before but then it run faster & quit smoking before 5 min of running,the small tool mechanic adjusted the carb and the machine run like new. Personally I had a 1993 Lumina that I bought new it got 34 mpg for about 4 years,then I noticed the performance & milage suffering to the point it only got 9 mpg.I took it to the dealer ,they said the injectors were dirty and for more than $400 they would chemically clean them with no warrenty.I thought there must be so additive that I could do the job my self.I searched the auto stores & the only product that helped was textron/Chevron bringing millage to 12mpg still unsatisfactory.After months of driving @ 9mpg I tryed superfuels & noticed the pickup was better after less than 1 week of operation,after 2 tanks of use the millage was 34 mpg again.I drove this car for several years with no problems except for wearing my tires.Every 4 tanks I used 16oz to clean & dry fuel system.