Yes, the fuel additives work by helping clean out the deposits left by carbon and ethanol.
No, they are all a scam and do not work.
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Don't waste your money. Fuel additives do not work. There are 2 good fuel system cleaners i can recommend. Techron, and Seafoam. Both are great products and should be used once a year to keep your fuel system clean. Forget the fuel additives.
There is no fuel additive that will increase mileage. This is a myth. None of the snake oil additives work.
No, fuel additives have no effect on the fuel pump. Fuel additives are really of no benefit whatsoever to your vehicle. The best way to help your fuel pump last for a long period of time is to change the fuel filter regularly. I recommend every 50,000 miles.
O2 sensor? Hey its a part and parts wear out. Oil additives or fuel additives can ruin an O2 sensor as well.
go kart additives?? fuel or crankcase??
You can always try fuel additives to clean out the gunk in your car's engine.
Kerosene with other additives.
fandango additives usually which contain oxygen
The opinions on this vary but most people would say that if the additives are safe for car engines then they are also safe for motorcycle engines. Normally, all you need is to clean the carburetor from time to time, fuel additives hardly play an important role.
The fuel additive container should say "O2 sensor safe".