We are so sure that FastFlow CNG will deliver a fast fueling experience that we are willing to back that promise with the only fast fueling guarantee in the industry. If you come to a FastFlow CNG station and you are unable to fill your vehicle, we’ll give you $50 toward your next fill up at FastFlow CNG.*

* If you are unable to fill your vehicle due to a problem with our equipment, just give us 15 minutes to fix the problem.  If we can’t, we will send you a $50 credit toward your next fill up at FastFlow CNG. Guaranteed.