D 350 Pickup L6-359 5.9L DSL (1989)
Engine Oil: Testing and Inspection
LUBRICATING OIL LEVEL - CHECK
Check the engine oil level. Never operate the engine with the oil level below the "L" (LOW) mark or above the "H" (High) mark.
The oil capacity between the low mark and the high mark on the oil dipstick is 1.89 liters [2 US. quarts].