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.

$2500 of missed opportunity.

I understand you can get octane booster at auto parts stores.


BTW, I drove in Seattle for 41 years before moving to Kentucky farmland and a 150 mile daily commute on these beautiful twisties. this car was tailor made for where I now live. I don't know what I'd do with one in Seattle other than get a lot of tickets. Heck, I was pulled over an average of three times a year in my xB when I was there. One of three usually ended up in some sort of ticket.

Which is why, when I'm near commercial jets, it smells like a metro bus.

I have to hit the gas station every two days. I have discovered that Kroger has a $.30 price difference from regular. Everyone else is between $.50 and $.90 difference. Since Kroger is also the cheapest gas around here, it matters. I'm paying $2.15 a gallon for 93 octane right now.


When I sell this car, I will never own another car that burns premium. It's not worth the hassle - and it is a hassle, because I'm cheap. I refuse to pay the higher difference unless there is not a Kroger within range. Then I will buy a gallon to get me to a Kroger.

My personally cars for the last 20 years have used premium. It was painful when gas was more than twice the price it is now. I’ve used 87 in those cars for the last 10 years. Haven’t really noticed any difference. Not in gas mileage or performance. Actually my last car a 350z that I babied and put premium in every fillup had the throttle body go bad then the oxygen sensor. Changed out both and had over 100k miles on it so I said f it and started using 87 until I wrecked it and traded it in for this car. I bought one of the first 350z and had it for 13 years until it was sideswiped by a car full of teenage girls.

I guess if I do hear pinging or knocking I will go back. I wouldn’t recommend others do it. I’m trying it as a personal experiment to see if it ever develops any problems. Kinda curious if anyone else did.

Im putting in whatever is the minimum octane requirement the car asks for...…..

I don't want to risk damaging my 20,000-30,000 purchase over not wanting to pay for its required upkeep.

Or you can go to any grocery store and get Moth Balls. Does the same thing. Just do not let it sit in you tank.

Ohhhh- I wouldn't do that in a modern engine - :eyebulge:

:search:


;)


humfrz

I would not ether! But we use to. Just made sure we burned up all the gas cruising main that evening.

I got the picture - :thumbsup:

Boy, does THAT bring back a bunch of back-in-the-day memories - :D


humfrz

We still cruise the gut every year in The Couve. You should come down sometime. It's a hoot. You & my neighbor across the street would be thick as thieves in no time.

Yep, bet we could continue the old Ford vs Chevy debate - :D


humfrz

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 ;)

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.

I use the best grade, the best. Ask anyone and they'll tell you. Why? Because I know gas. I understand it. I grew up with it. You can't put a price on great gas. American made gas. For the people. You'll love it.

Sent from my Nexus 5X using Tapatalk

Ya really outta give that up - :eyebulge:


humfrz

I honestly have no clue why this forum still allows posts like this, they always devolve into off topic stuff or OP not listening. Posts like this show that OP didn't research into the car enough to know what happens. There have been plenty of posts asking people what fuel they use.


I suspect OP doesn't have an OFT or anything close to that to datalog his cars or show evidence of how lower octane fuels effect performance....

Well, the OP was just asking if anyone else was doing what he was doing.

Maybe a poll would have been more appropriate - :iono:

The problem can be when there is no way to END a thread, except to just let it drift to the bottom (or talk about forbidden topics).


humfrz

Boxers or briefs?

Who let Trump in here?

Oh, now THAT may end the thread - :iono:


humfrz

Clean or dirty?

So what are your feelings on lightweight pullies?

7

I've read that your secret 1970's porn name is the color of your underwear and your breakfast meat.

Well "Black Sausage" is way off base for me!


Will have to go with


White-
http://www.schneiders.ca/wp-content/...zlers_375g.png

Red Chorizo. ¡Muy caliente!

Nude Coffee.

Not a meat but we can ignore that.

I don't eat breakfast. Ever. So is it my preferred breakfast meat, or the meat I ate for breakfast?

I went with preferred since I don't eat breakfast (usually) either.

Last time you had a breakfast meat, or whatever is funny.

Lightweight pulleys? Depends on the color.


humfrz

Considering I've asked and never gotten an answer, they do not.

Did you notice any other performance differences between non-ethanol and ethanol enemas?

No I don’t have a data logger. That would be the same as me asking if you have ever tested the octane of the gas pumps to determine if you are actually getting 93 octane or if the driver filled 87 in the premium tank. Lol

Naked Bacon it is.

No it isn't, because one would actually be cause for a lawsuit.

It has happened many times before. Diesel has been put in the unleaded tanks.

87 in premium tank doesn’t cause problems so you may have filled up with 87 and not know it.

Funny, that has never happened to me in 40 years of driving.