Champion's fuel economy calculator for diesel fleets is available on their web site: http://www.championbrands.com. It helps fleet managers understand that the formulation of Champion's new lower viscosity SAE 5W-30 UltraFleet Heavy-Duty Diesel Motor Oil ensures durable protection while delivering real-world, measurable fuel economy gains. In fact, Champion's SAE 5W-30 UltraFleet was found to deliver an average of 3.3% and up to 4.5 percent fuel economy improvement over a conventional SAE 15W-40 API CJ-4 lubricant tested at an independent testing facility using the SAE J1321 fuel test protocol.