Increased power and greater cutting performance 25.4 cc professional-grade two-stroke engine manufactured from magnesium; Large 20.6 fluid ounce fuel tank for extended run time between fill-ups; Tool-less access for convenient in-field servicing; Automatic, adjustable oiler to match cutting conditions; Easy start-ability especially for re-starts in hot, dusty climates; Over-molded rear hand grip for extreme comfort; Ribbed fiberglass outer shaft for rigidity and control; Two-stage air filtration system dramatically increases cleaning capability and allows for longer maintenance intervals;