"I" - Extensive Idling, Low-Speed, Commercial Use-Taxi, Police, Delivery
SPECIAL OPERATING CONDITION "I" - Extensive Idling And/or Low-speed Driving For Long Distances As In Heavy Commercial Use Such As Delivery, Taxi, Patrol Car Or Livery
As Required - Change engine oil and replace oil filter as indicated by message center and perform service as listed in the Normal Scheduled Maintenance chart.
Inspect Frequently, service as required - Replace cabin air filter (if equipped). Replace engine air filter.
EVERY 30,000 MILES - Change automatic transmission fluid (except vehicles with a 6R80 transmission).
EVERY 60,000 MILES - Replace spark plugs.