GHG17 DD Medium Duty Operators Manual Table 30. All information subject to change without notice. 101 DDC-SVC-MAN-0192 Copyright © 2017 DETROIT DIESEL CORPORATION Extended Life Coolant Maintenance Intervals: Service Application Efficient Long Haul 1 Long Haul 2 Short Haul 3 Severe 4 Action Required Engine Series DD8 Not Applicable Every 120,000 miles (193,000 km) or 1 year 5 Every 110,000 miles (177,000 km) or 1 year 5 Every 72,000 miles (145,000 km) or 1 year 5 Refer to section "Extended Life Coolant Additive Maintenance Procedures" 1. Efficient Long Haul is not applicable to the DD5 engine. 2.
Long Haul service (over-the-road transport) applies to vehicles that annually travel more than 60,000 miles (96,000 km) and average greater than 8.5 miles per gallon with minimal city stop-and-go operation. Examples of Long Haul service are: regional delivery that is mostly freeway mileage, interstate transport, and any road operation with high annual mileage. 3. Short Haul service applies to vehicles that annually travel up to 60,000 miles (96,000 km) and average between 6.5 and 8.5 miles per gallon and operate under normal conditions. Examples of Short Haul service are:
operation primarily in cities and densely populated areas, local transport with infrequent freeway travel, or a high percentage of stop-and-go travel. 4. Severe service applies to vehicles that average below 10.0 miles per gallon or that operate under severe conditions. Examples of Severe Service are: idle time over 40%, load factor over 55%, operation on extremely poor roads or under heavy dust accumulation; constant exposure to extreme hot, cold, salt-air, or other extreme climates; frequent short- distance travel; construction-site operation; or farm operation. Only one of these conditions needs be met to categorize an application as Severe Service. 5. Whichever comes first.