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91 10% ethanol or pure 91 gas??

Posted By: dbvettez061

91 10% ethanol or pure 91 gas?? - 02/16/20 01:47 PM

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 ??
Posted By: eljefino

Re: 91 10% ethanol or pure 91 gas?? - 02/16/20 01:50 PM

Give it a try. The sensitivity, the difference between Research and Motor octane, may benefit you.
Posted By: ArcticDriver

Re: 91 10% ethanol or pure 91 gas?? - 02/16/20 04:15 PM

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.
Posted By: wolf_06

Re: 91 10% ethanol or pure 91 gas?? - 02/16/20 04:30 PM

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.
Posted By: dbvettez061

Re: 91 10% ethanol or pure 91 gas?? - 02/17/20 05:10 AM

Lived in north bay Ontario. Could get Sunoco gold there 94 octane. Sure miss it.
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