Chevron's Delo brand of technologically advanced engine oils, lubricants and coolants, announces the latest member of its product family, Delo® Heavy Duty EP. Formulated with Chevron ISOSYN® base stocks, Delo Heavy Duty EP greases are ideal for heavy to severe duty on and off-highway construction and maintenance vehicles, including tri-axle dump trucks, cement mixers, overweight truck and trailer combinations, logging, heavy machinery haul trucks.