Help appreciated, I just bought a Kubota 2013, model B3200, Its kept in heated garage. I have neighbors say due to diesel fuel today, I should put in additives in fuel tank, for different reason, such as lubrication and other reason. The dealer tells me todays engines are designed to run on the fuel on the market today. He points out of if gelling in fuel due to low temps is not a problem do not put in additives. Advice from everyone appreciated.