DEF and SCR Derates in Florida Heat: Why Orlando Trucks Fault More Often Than Northern Fleets
Short answer: Orlando trucks throw DEF and SCR faults more often than trucks running out of colder states for two reasons that stack on top of each other. Florida heat shortens how long diesel exhaust fluid stays in spec, and the local duty cycle keeps exhaust temperatures too low to burn off the urea deposits … DEF and SCR Derates in Florida Heat: Why Orlando Trucks Fault More Often Than Northern Fleets







