Recognized as the market leader in improving diesel fuel performance, AFS has long been the go to organization where diesel operators exercise a zero tolerance to downtime. AFS products and technical support continues to be the choice for year round fuel system protection. Our strategy centers on unsurpassed personal support to our clients. Cold temperatures challenge diesel fuel and with the increased use of biodiesel being blended nationally under the Renewable Fuel Standard, (RFS2) you can be assured that AFS and its extensive group of partnering companies will be prepared to protect your diesel business. AFS products and services help eliminate the worry associated with single digit temperatures.