Delo® Extended Life Coolant/Antifreeze PG are single phase, propylene glycol type
products based on Chevron's patented aliphatic carboxylate inhibitor system with
nitrite and molybdate added. Delo Extended Life Coolants/Antifreeze PG do not require
the addition of supplemental coolant additives to obtain a service life of 750,000
miles/8 years/ 12,000 hours with correct top-up practices. Delo Extended Life Coolants/Antifreeze
PG meet the CAT® EC-1 specification.