If the oiler will keep the bar cool, as a rare occurrence I wouldn't have a problem sticking one on there. You really need to keep the chain sharp and take your time, letting the saw and chain do the work as opposed to pushing it. I've run a 24" several times on 346's with nothing more than a muffler mod and the base gasket removed. I will add that a 20" is much better suited and you can cut close to a 40" tree with that length bar.