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91 10% ethanol or pure 91 gas?? #5351459 02/16/20 08:47 AM
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dbvettez061 Offline OP
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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 ??


2001 Z06 Forged Blown Stroked 650 RWHP 645 RWTQ
Vietnam Vet 5thSFGA
Re: 91 10% ethanol or pure 91 gas?? [Re: dbvettez061] #5351465 02/16/20 08:50 AM
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eljefino Offline
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Give it a try. The sensitivity, the difference between Research and Motor octane, may benefit you.

Re: 91 10% ethanol or pure 91 gas?? [Re: dbvettez061] #5351609 02/16/20 11:15 AM
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ArcticDriver Offline
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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.


Multiple Diesel and Gasoline vehicles
Re: 91 10% ethanol or pure 91 gas?? [Re: ArcticDriver] #5351619 02/16/20 11:30 AM
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wolf_06 Offline
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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.


2018 Mazda 3 GS 2.0 Skyactiv 6AT
Petro Canada Full Syn 0w20 + OEM filter
Re: 91 10% ethanol or pure 91 gas?? [Re: wolf_06] #5352278 02/17/20 12:10 AM
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dbvettez061 Offline OP
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Lived in north bay Ontario. Could get Sunoco gold there 94 octane. Sure miss it.


2001 Z06 Forged Blown Stroked 650 RWHP 645 RWTQ
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