They were impressed by the efficiency and performance of the biofuels and their potential to end the dependence of the United States on foreign oil sources, as well as to provide the family farmers with work to produce it.

The same year, he and his wife became partners with Bob and Kelly King in the building of two biodiesel plants, one in Salem, Oregon and the other at Carl's Corner, Texas.

The book described the benefits of the use of biofuels, its performance, the possibility of the independence of foreign oil and the opportunity of production by family farmers.

[7][8] The use of the BioWillie later declined due to the restrictions of the brand, that specifies that the fuel must meet or exceed standards established by the American Society of Testing and Materials.

The same year beginning from Nelson's birthday, on April 30, Pacific Biodiesel made available a retail pump, containing BioWillie.