This 18” 42.9cc 2.9HP mid-size chain saw from efco is perfect for medium to large-size trees. It has a lightweight design with generous power, a micro-lite chain that supports faster cuts, an air-purge feature that assists with cold starts, a 5-point anti-vibration system that helps increase comfort and an easy-on starting system that ensures smooth and quick starts. The fuel tank window allows easy fuel-level check. Oil tank: 7.4oz. Fuel tank: 10.8oz.