DeWalt DXGNi35E Owner's Manual page 22

GENERATOR PREPARATION
STEP 1 - ADD/CHECK OIL
0.45L (SAE 10W-30).
Cover
Remove the oil filler cover. Unscrew the oil dipstick from the engine.
Oil Dipstick
Reinstall the oil filler cover.
filler
filler
STEP 2 - ADD/CHECK FUEL
15