Sounds like you got a nice saw. Any saw the owner is happy with is a nice saw in my book. Well except maybe some of those orange ones with the outboard clutch... Just kidding they make a pretty good saw too. Your exhaust comment made me chuckle a little. Pull up a chair and hang out a bit, and we will have you cutting another port in that muffler before you know it!
Don't take this as anything near to gospel ...... But ,I've read it in several different places . Regular fuel before adding ethanol ,and other octane modifiers ..... 83 Premium ....88
That's why you're supposed to use premium for this. My understanding is that 93 octane E10 yields 89 octane E0.
Removing the ethanol via water is far riskier than just running E10 fuel. Ethanol is not so poisonous to your equipment (especially fairly modern stuff built in the last 15 years or so) that there is significant motivation for removing it IMO. As long as you are aware of it, use a good fuel treatment like StarTron or similar, and use good fuel storage practices, you will have no trouble. Also best to not let it sit in the tanks of your equipment for months on end.
There's over 12000 lakes in my state, and a couple of Great Lakes. Every marina I've seen has e10 only, and I spend a lot of time on the water. Where I live, e10 has been around for ~20 years with no real ill effects whether my toys are 2 stroke or 4 stroke. My 15 yr old stihl has only seen e10 in it, except for the couple of cans of trufuel I ran last winter. Just only buy a gallon at a time, then use it. If it sits too long, use it in some small 4 stroke power equipment. Try a can of the trufuel if you want. I can say my saw smelled great using it, and I think it ran crisper than on pump gas.
Exactly. Ethanol fuel gets more octane out of it, because of the ethanol. Take the ethanol out of it, and it will be lower octane, and most certainly worse for the motor than the unmolested e10 was.