Minnesotans using No. 1 diesel fuel do not need to mix it with biodiesel until April 1.
The normal 5 percent biodiesel is being lifted because of concerns from truckers and others who fear extreme cold weather could clog fuel lines, the state Commerce Department reports. No. 2 diesel still must be mixed with biodiesel.
Biodiesel normally is made from soybean oil, and Minnesota is the first state to require the mixture.