General Information 00 M2 Maintenance Interval Operations: 00–06 Maintenance Operation Number M2 Maintenance Interval Operations for Service Schedules I and II Check 83–02 Air Filter Replacement * For Schedule I vehicles with Detroit axles, complete this procedure once a year or every 25,000 miles (40 000 km), whichever comes first. The fuel cylinder should be inspected every year or 100,000 miles (160 900 km), whichever comes first. Table 6, M2 Maintenance Interval Operations for Service Schedules I and II Cascadia Maintenance Manual, August 2015 00/11