I live in western Colorado at 4500 feet elevation. I have a ZL 1 supercharged with 650 hp and 650 tq. Is the non ethanol better to maximum performance ??
I far prefer the PureGas-91 based on all of my research of the damage and lower fuel economy that results from ethanol, not to mention the greater stability of PureGas during periods of storage.
Here in Canada, regular is 10% ethanol, mid grade is 5%, and premium has none. Shell around here has this explanation on a sticker on the pump when I went for a fill up.