I work at a small dealership selling Stihl, Husqvarna & other brands of 2/stroke powered machinery & for the past 25 years we have always sold a pre-mixed 2/cycle fuel, we mix our own blend of good 2/cycle oil, petrol & AV gas @ 40:1 ratio, yes the cost is a little higher than if you were to do your own standard mix but the amount of fuel sold & coustomers that keep coming back mean we're doing somthing right, a good service for the coustomer & if there is a problem with the saw ect..., we know it's not the fuel mix thats the problem.:thumbsup: