Fuel theft: In this economy, stealing or taking advantage of company fuel cards is at an all time high. Investing in a comprehensive fleet fuel card is one way business owners can be proactive about theft prevention.  Unlike a gas card or a credit card or even cash, fleet cards have the ability to set internal controls, such as how much fuel can be purchased per vehicle, per day or even by mileage.  If a user tries to exceed this volume, the card is literally shut off.