What grade gas do you use.

[LotsaMiles]

Originally Posted by Dadillac

Only 93 for me. Costs about $5 more to fill up. But I only fill up once every 2.5-3 weeks. So the additional cost is almost non existent.



Don

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.

[Silverz]

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.

[Sasquachulator]

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.

[Grady]

Originally Posted by LotsaMiles

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

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.

[humfrz]

Originally Posted by Grady

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 -







humfrz

[Grady]

Originally Posted by humfrz

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







humfrz

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

[humfrz]

Originally Posted by Grady

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 -

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


humfrz

[Ultramaroon]

Originally Posted by humfrz

I got the picture -

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

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.

[humfrz]

Originally Posted by Ultramaroon

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 -


humfrz

[gravitylover]

Originally Posted by extrashaky

Butt dyno = confirmation bias. Confirmation bias should always be considered suspect.
...

BTW, I have used non-ethanol in mine. My anus did not pucker any differently. So my butt dyno contradicts yours.

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

Originally Posted by ayau

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.

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.

[jrb363]

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

[humfrz]

Originally Posted by jrb363

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 -


humfrz

[FRSBRZGT86FAN]

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....

[humfrz]

Originally Posted by FRSBRZGT86FAN

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 -

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