BiodieselNC
ArboristSite Member
Hey all, I have been thinking a lot about this lately and thought I would ask for opinions regarding octane of gasoline and ethanol vs. no ethanol.
As a preface, I will put out there that most of my saws are running tighter-than-stock squish and therefore a little higher compression. No pop-ups yet, but that may be on the way soon The reason I bring this up is for the sake of detonation, the damage that can come from that, as well as just simply running hotter. I am seeking to protect my equipment as 100 degree summer days on gonna be here soon!
In my area, I basically have two options for gasoline. At least 2 options that don't cost me an arm and a leg. I can purchase ethanol-free gasoline with an octane of 87 or 89. I get the 89. The other option would simply be the regular E10 stuff you get at the pump which I could get 93 octane. No Sunoco or other stations for at least an hour of where I am.
Am I better off buying the 89 octane ethanol-free stuff and just adding some octane booster? or should i get the 93, tune richer, in hopes that I will run cooler/less detonation?
As a preface, I will put out there that most of my saws are running tighter-than-stock squish and therefore a little higher compression. No pop-ups yet, but that may be on the way soon The reason I bring this up is for the sake of detonation, the damage that can come from that, as well as just simply running hotter. I am seeking to protect my equipment as 100 degree summer days on gonna be here soon!
In my area, I basically have two options for gasoline. At least 2 options that don't cost me an arm and a leg. I can purchase ethanol-free gasoline with an octane of 87 or 89. I get the 89. The other option would simply be the regular E10 stuff you get at the pump which I could get 93 octane. No Sunoco or other stations for at least an hour of where I am.
Am I better off buying the 89 octane ethanol-free stuff and just adding some octane booster? or should i get the 93, tune richer, in hopes that I will run cooler/less detonation?