I use Sach Dolmar for my firewood saws. My 114 is in really nice shape for an older saw. It has a new carb and new quieter muffler. I know there is a lot of talk about modifying mufflers on this site, but sometimes it's nice to run a quiet saw. If I want to make some noise, I just get out a McC. My 116si is alot hotter than the 114. It's a little brother to the 120si (60cc/70cc). It pulls an 18" bar without a sweat. My Dad has a 120 super. Nice saw, really blasts through the wood.