We had a customer’s chainsaw here that we were troubleshooting. During the process we installed our shop fuel (premium with Opti-Mizer Fuel Treatment). He ended up buying a new saw and left the old one. We were going to repair and resell it but as usual, got busy and it got put aside. Five years later we pulled this thing out and thought “its a goner now”. Out of curiosity we drained the fuel from the tank, threw in some fresh stuff and the saw fired right up! We couldn’t believe it.
