Normal Duty
- Oil changes every 3000 to 5000
- Critical Parts changed when near failure or broken
- Maintainance checks during regular service
- Consumable parts replaced during regular intervals or as needed
Severe Duty
- Oil changes every 3000 miles or earlier
- Parts replaced long before failure
- Maintainance done ahead of time
- Great cycle for mission critical applications
Extended Cycles
- Oil changes every 7-15,000 Miles
- Sometimes includes bypass filters
- Oil analysis every oil change
- Excess idle time not recommended but usually happens