With harvest season here, fuel supply and pricing are top of mind for farmers. “I think biodiesel has become a very, very good partner with, quite frankly, fossil diesel fuel. And I think you’re seeing a lot of use of it.”His advice for farmers is simple: buy early and often. Looking ahead, Schwantz says refiners are preparing for seasonal maintenance, which could tighten supply further toward the end of harvest. That makes early planning even more critical for farmers hoping to avoid fuel shortages when they can least afford downtime.