| gravitylover |
02-02-2019 10:02 PM |
Quote:
Originally Posted by extrashaky
(Post 3180714)
Butt dyno = confirmation bias. Confirmation bias should always be considered suspect.
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BTW, I have used non-ethanol in mine. My anus did not pucker any differently. So my butt dyno contradicts yours.
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Dueling butts? Bumpin' butts? Yeah, whatever. If I hit the button to show current mpg it will show higher on non-e than 10% at the same speed in the same gear on the same hill on the same day, this is confirmation that it's pulling and running better IMO. Like I said this may be because the fuel pump works better on non-e fuel due to being better lubricated but that's just my theory. I might be biased though ;)
Quote:
Originally Posted by ayau
(Post 3180743)
Non-ethanol gets you more MPG because there's more potential energy per volume of gas than 10% ethanol gas. This means under normal driving conditions, you'll be on the gas less.
Ethanol gas is more knock resistant than non-ethanol. So under high loads (e.g., wide open throttle), the gas will burn cooler, therefore, reduce knock. This is exactly why tuned engines can make a lot of power with E85.
The stock engine/tune will knock with 91 gas, which means you'll lose a little bit of power. The owners manual even recommends 93 minimum.
Also non-ethanol 91 will cost more than 91 ethanol, so your MPG gains are moot point.
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I'm not running the stock tune. Yes it does cost a bit more, ~$.10/gal more, but the perceived gains are nice and I certainly appreciate it when it's not chirping, that alone (almost) makes it worth the difference.
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