How much Fleet Charge do I need for corrosion and liner protection?
9. What maintenance does Fleet Charge require? The recommended maintenance for Fleet Charge in systems up to 30 gallons is the Penray Need-Release filter. Change the Need-Release every 18 months, 150,000 miles or 3,000 operating hours (whichever comes first). Under this program there is no scheduled coolant change interval. back to top 10. Does Fleet Charge have a shelf life? We know that Fleet Charge has a stable storage life of at least 5 years if stored above 0 degrees F. back to top 11. Can I test Fleet Charge to see if the system is “Ok”? Sure! We recommend the use of a refractometer or a Penray test strip. (Just don’t use automotive coolant test strips or hydrometers.