Fuel cards aren't just for businesses – you can get an individual gas credit card to use for your personal vehicle, or your business vehicle (if you're self-employed). Of course, if you're a fleet manager, to ensure your business accounts don’t become out of sorts, you should invest in a separate personal fuel card if you want to use one for your personal vehicle too. Companies such as ExxonMobil supply personal cards. Or, look into signing up for a credit card that offers bonuses for gas purchases. American Express, Citi, and Bank of America all supply such credit cards.