... Low oil pressure alert system, shuts down automatically. gasoline generator, Petrol Generator, portable generator-Legendary KG390 4-stroke engine.-A new AVR( ... self-excitationEngine modelKG390Engine typeSingle cylinder,4-stroke,air-cooled,OHV,gasoline engineDisplacement [L (cc)]0.389(389)Compression ratio8. ... brandSAE10W30 (above CC grade)Low oil pressure alert systemWith Gasoline Generator set