KWLM: “Senate DFLers want Walz to allow Red Dye Diesel use on MN roads” Posted on October 1, 2026 by Aric Putnam ST. PAUL (KWLM) — Senators Aric Putnam and Rob Kupec, both leaders on the Senate Agriculture Committee, are asking Governor Walz to temporarily let farmers use lower-taxed red dye diesel on public highways and not just in the field. Read more