Stabilizer Agent Amalgamated Inc® offers a custom formulated distillate fuel stability additive to provide ultimate protection for all distillate fuel grades and Biodiesel fuel blends. Component - 2 to 5 ptb = 6 to 12 months stability protection. This product is also include in most, but not all, diesel fuel additives formulated by Amalgamated Inc®. To receive more information check out Stabilizer FSP-55® or please contact us.