twiztedsix
ArboristSite Operative
here is what I found on Echo's website
There is no compromise to the design and building of an ECHO engine. Its value minimizes somewhat higher price since it lasts longer and performs better. If all the proper preventative maintenance is done and the proper lubrication is used, ECHO engines are designed to last 1,200 - 1,500 hours or more. Proper preventative maintenance and lubrication as outlined in the operator's manual is critical to the life of your any HI-RPM 2 stroke engine.