The Echo 18" CS400 Power Chainsaw Features The Easy Start i-30 Taking 30% Of The Effort Out Of Starting. Inertia type chain brake. Duel post chain brake handle. Automatic/Adjustable Oiler. 40.2cc Power Boost Vortex Engine. Holds 13.9 fl. oz. fuel and 9.5 fl. oz. oil. 5 Yr. consumer warranty. Dry weight 10.1 lb.