The Senix CS4QL-L3 16-inch gas powered chainsaw features a 46cc 4-cycle engine that does not require mixing gas and oil, but remains lightweight and powerful. The full crank engine design provides a longer engine life, lower vibration, and easy maintenance. The chainsaw features a 16-inch Oregon bar and chain for smooth cutting, and auto choke and compression release for easy starting. The auto oiler provides continuous lubrication to the bar and chain to ensure high performance and trouble-free cutting.