The distributors also said DEF has a limited shelf life, so it is important to use first what comes in first. Truck operators should avoid lengthy storage, they said.
Forum panelists said stores will keep selling 2½-gallon jugs and truck stops will have DEF pumps, but “there is a pretty profound shift” to on-site bulk storage, said Norm Winkler, national sales director of Titan Chemical Transfer Solutions.
The tanks are usually made of polyethylene or fiberglass, but PVC — polyvinyl chloride — should be avoided for DEF tanks, Winkler said.
Rick Whately, a sales manager for Xerxes Corp., a manufacturer of tanks for DEF and other products, said tanks can have fullness sensors built in and that a fiberglass tank has a 30-year warranty. He recommended using a trained installer rather than a do-it-yourself installation.
Jason Harrington, a sales manager for Snyder Industries, also a tank maker, said sturdiness is important because low-density plastics tend to fall victim to infiltration and then either become soft or brittle.