The Minnesota trucking industry is asking Governor Pawlenty to temporarily suspend a two-month-old mandate that requires diesel fuel sold in the state contain two percent biodiesel. Truckers say they are experiencing more mechanical problems and they suspect that the fuel made from soybeans is to blame. John Hausladen, President of the Minnesota Trucking Association, says many of his members are pretty upset right now. That is John Hausladen, President of the Minnesota Trucking Association.