:)G'Day SMOUCH I have a Ryobi RST131ES EXTRA SLASHER brush cutter. but..... I am missing the manual and parts list. I am still very confused as to how to get one??? :eek All I really need to know is whether I need to run it on PURE unleaded fuel oil mix @25:1 OR.... do I need to add the valvesaver drops also to the fuel mix ... as I dont know how old this model is. It was given to me as a wreck which I have since restored. A very nice unit when its going! Cheers, Yoda