Your diesel is changing as of today. Officials say it will make a cleaner burning fuel that is also healthier for oregon's economy: “The renewable fuel standards mandates that when Oregon's biodisiesel production capacity in state reach more than five million gallons the 2% requirement kicks in. When the in-state production capacity reaches 15-million gallons per year, the 15% requirement kicks in.” Oregon Department of Agriculture’s Stephanie Page says the State is working with dealers to ensure they are selling a 5% blend starting today. She adds that engines should run well with the higher biodisiesel and in fact should run cleaner.