Recently purchased a husky 346xp thanks to all of the info I gathered here , anyway I just realized I'm only using the cheap stuff ( 87 ) and was wondering what you guys are using ? Would 89 be good enough or should I be using 93 , not to worried about price as I'm only cutting firewood and don't go through enough gas in this one saw to hurt the wallet , I'd rather burn whats best for the saw . The manuel says use a min. of 87 and just says higher if doing alot of limbing at hi rpm's .