Detroit DD13, DD15 & DD16 specs
Oil capacities and key maintenance intervals for Detroit's DD heavy-duty platform in on-highway trucks and coaches, from Detroit's own operator's manual.
Engine oil capacities — Truck (EPA07 / EPA10 / GHG14)
About 5.0 L (5.2 qt) separates the dipstick fill and full marks. Overfilling can damage the engine.
| Spec | DD13 | DD15 | DD16 |
|---|---|---|---|
| Total dry engine oil volume | 44.0 L (46.5 qt) | 49.0 L (51.8 qt) | 49.0 L (51.8 qt) |
| Oil and filter change | 38.0 L (40.1 qt) | 43.0 L (45.4 qt) | 43.0 L (45.4 qt) |
| Remaining after drain (incl. filter removal) | 6.0 L (6.3 qt) | 6.0 L (6.3 qt) | 6.0 L (6.3 qt) |
| Dipstick min. to max. | 5.0 L (5.2 qt) | 5.0 L (5.2 qt) | 5.0 L (5.2 qt) |
| Sump oil volume | 35.0 L (37.0 qt) | 40.0 L (42.3 qt) | 40.0 L (42.3 qt) |
Source: Detroit Diesel Corporation, DD Heavy Duty Platform Operators Manual (DDC-SVC-MAN-0189, revised 2024-03-05). Always confirm against your engine's serial-number documentation.
Engine oil capacities — GHG17
| Spec | DD13 Truck | DD13 Coach | DD15 Truck | DD16 Truck |
|---|---|---|---|---|
| Service fill (oil and filter change) | 38.0 L (40.0 qt) | 45.0 L (48.0 qt) | 43.0 L (45.0 qt) | 43.0 L (45.0 qt) |
| Oil pan capacity, high limit | 35.0 L (37.0 qt) | 42.0 L (44.0 qt) | 40.0 L (42.0 qt) | 40.0 L (42.0 qt) |
| Oil pan capacity, low limit | 30.0 L (32.0 qt) | 37.0 L (39.0 qt) | 35.0 L (37.0 qt) | 35.0 L (37.0 qt) |
Source: Detroit Diesel Corporation, DD Heavy Duty Platform Operators Manual (DDC-SVC-MAN-0189, revised 2024-03-05). Always confirm against your engine's serial-number documentation.
Maintenance intervals by duty cycle (EPA10 / GHG14 / GHG17, CK-4 or FA-4 oils)
Duty cycle is set by fuel economy: Efficient Long Haul 7.0+ MPG, Long Haul 6.0–6.9, Short Haul 5.1–5.9, Severe up to 5.0.
| Spec | Efficient Long Haul | Long Haul | Short Haul | Severe |
|---|---|---|---|---|
| Frame-mounted fuel filters | Replace every 65,000 mi (105,000 km) | Replace every 55,000 mi (89,000 km) | Replace every 40,000 mi (64,000 km) or 1,000 hrs | Replace every 35,000 mi (56,000 km) or 750 hrs |
| Valve lash adjustment (GHG17) | Every 500,000 mi (800,000 km) | Every 500,000 mi (800,000 km) | Every 500,000 mi (800,000 km) | Every 200,000 mi (322,000 km) |
| Valve lash adjustment (EPA07 / EPA10 / GHG14) | At 100,000 mi, at 500,000 mi, then every 500,000 mi | At 100,000 mi, at 500,000 mi, then every 500,000 mi | At 100,000 mi, at 500,000 mi, then every 500,000 mi | At 100,000 mi, at 500,000 mi, then every 500,000 mi |
| Standard-life coolant | Maintain every 65,000 mi; replace every 300,000 mi | Maintain every 55,000 mi or 1 yr; replace every 300,000 mi | Maintain every 40,000 mi, 895 hrs or 1 yr; replace every 300,000 mi | Maintain every 35,000 mi, 640 hrs or 6 months; replace every 300,000 mi |
Source: Detroit Diesel Corporation, DD Heavy Duty Platform Operators Manual (DDC-SVC-MAN-0189, revised 2024-03-05). Always confirm against your engine's serial-number documentation.
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