Self-excitation, brushless, Diesel generator ModelKDF4000X/XEKDF4000X-3/XE-3 ... (summer), -10 (winter), -35 (chill cold) diesel oil LubeSAE10W30 (above CC grade)SAE10W30 (above CC grade ... type1-cylinder, 4-stroke, air-cooled, verical, diesel engine Bore×stroke (mm)78×6278×62 Displacement ... power (KW/rpm)3.7/30004.0/36003.7/30004.0/3600 Rotation direction (view from the flywheel)Clockwise diesel generator ...