Fluid · Engine Oil
Engine Oil
for 2026 Ford F-550 6.7L V8 Power Stroke · 4WD
Fluid Type
10W-30 CK-4 full synthetic or 5W-40 CK-4 full synthetic
Spec: API CK-4 / FA-4
Capacity
30qt
28.38 L
Drain & Refill
30 qt
28.38 L
Change Interval
5,000 mi
8,045 km
Notes
With filter. 10W-30 for most conditions, 5W-40 for sustained high temps or towing. Severe duty: 7500 miles
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