You Don't Press The CLEAR Button

After finishing gassing up your car you should push the CLEAR button on the gas pump.  The clear button is located on the left hand bottom of the key pad, to the left of the # 0.  Without clearing others can use your credit information to get gas from your card.  Only when another purchaser inserts their credit or debit card does your information clear if you didn't clear your purchase.  Although a lot of information about this has not been disseminated it stands to reason of why the CLEAR button was added to the keypad.  Obviously this warning doesn't pertain to cash customers.