I am curious if you can add ethanol to 100% gasoline to boost the octane rating of the gasoline and if so what percentage can you add? I spoke to the company that owns the gas stations and delivers the gas that gave the 100% ethanol and he said the octane rating is at minimum 112 and is most often 115. If you do add the ethanol to the gas do you also have to add something to aid in the lubricity? I have read the posts on this subject and have not seen anyone say if there are any benefits to adding the ethanol. I know that tolulene is the octane booster of choice but I got this ethanol free. Are there any adverse consequences to adding the ethanol?