ECHO CS-590-18 Chain Saw 18" Bar Rear Handle Timber Wolf 59.8cc EngineECHO CS 590 18 Chain Saw 18" Bar Rear Handle Timber Wolf 59. 8cc Engine The new standard for tough Features: 59. 8cc professional grade, 2 stroke engine for outstanding performance Automatic, adjustable clutch driven oiler for reduced oil consumption Decompression valve for easier stater rope pulling G Force Engine Air Pre Cleaner for reduced filter maintenance Easy access, heavy duty two piece air filter for easy cleaning Translucent fuel tank for