94 octane gasoline = quieter ICE

Whats funny is Wisconsin is the first to raise gas prices and the last to lower them.

When prices drop the amount of price “spread” can approach rediculous levels.

Occasionally the Indian Casino gas can be a buck a gallon cheaper than the normal stations.

Our Premium for Premium is so terrible it’s never worth buying, occasionally it’s almost twice the price.

 

Here in Canada 94 Octane is definitely a rarity. However here in BC, and if I am not mistaken most other provinces, once main stream gas company offers 94.

Can't post links yet but look at Chevron with techron.

Not much info but they do 100% percent offer it at every one of there stations here, and have for a decade at least.

 

Username checks out.

 

FWIW, that specific A/C in the PSA became part of our Fleet...one I have become very familiar with.

It still won't get Prius mpg, but it sucks a way less fuel than our old B737-200's.

 

I got confused when he said thrust. I thought it only came from jet engines and rockets. Did I miss something in his pictures?

What is the price for reg. now? Here in Utah we are avg. $2.80

 

I assumed it was a creative use of the word. But post 61 got me straightened out.

Cool video!!! I love how they remind me that it was flown by Boing test pilots and I should not attempt to duplicate those maneuvers.

Yeah, but I'll bet your milk is a lot cheaper than ours. LOL!

You just made my point. I tell people that if I buy exactly 10 gallons it would cost $20.69, not $20.60. So why would I say it's $2.06/ gallon?

 

I still think that the original claim is due mostly to the placebo effect.

AND....that gas pump picture you showed is from a station that is STEALING from the people gullible enough to think that their car will run better with a higher octane.......even though the people that MADE IT say otherwise.

They are stealing from people who need the higher octane too. There is NO WAY that 2 octane points should result in a price difference of $1.00 a gallon.

Even if you don't buy the higher octane fuel, you should avoid that station.
They are dishonest.......and might be doing other stuff that isn't good for YOU either.

 

Oh, I always round-up. If gas is $2.069/gal, I would say it's $2.07/gal. The number ending 9 always seems much cheaper than rounded up number. On sale for only $199.98 looks so much better than $200.00. It's all marketing.

 

The only octanes I've seen listed in Pa is 87, 89, and 93; all E10. 93 is the octane for federal premium. It is what is used for the EPA test. For CARB and their tests, it is 91 octane.

I've read that gas stations don't have to follow the normal 50/50 rounding sceme, and can round up as much as a third of the time.

I just assume all US prices quoted have a silent 9 at the end; except Donny's Discount Gas. I've only seen a different value when it comes to price per liters.

Going by the the ethanol labels, that premium is ethanol free. I've seen a higher increase for such.
Midgrade is the real rip off every where. For 89 octane, it is a 2 to 10 mix of 93 to 87.

Research has shown that a fair number of people don't compute the numbers after the decimal of a price; $9.99 is $9 to them.

 

Especially that first bit (bold) I agree: I can remember (decades back) looking in my Owner's Manual for octane spec's, then looking at the pumps, where the numbers were different, due to to something, beyond my pay scale, lol.

Anyway, up here most station have highest octane of 91, except Chevron:

 

[Nerd on] When rounding , 9/10 always goes up to the larger integer. Only truncating would allow you to go down.. [Nerd off]

Posted via the PriusChat mobile app.

 

Thanks for the math lesson, teacher. The point was not how the math works, but when gas is sold at $2.069/gal and if you buy exactly 1 gal of gas, you will get charged $2.07, not $2.069, and certainly not $2.06. You are being charged 0.1 cents more than what is posted. Is it legal?

Now, that brings another question. I have never seen it, but if the gas price is posted say $2.064/gal, and if you buy exactly 1 gal of gas. Will you get charged $2.06 or $2.07??? Charging 0.6 cents more even allowed?

 

You are missing the point.
On these pumps, the price increase over "regular" is about a DOLLAR AND THIRTY CENTS per gallon.

 

Sounds like most always round up when the mil is 5 or higher.

The pump has a 'contains 10% ethanol' label next to the regular and midgrade. The premium does not. A station I pass going to my parents charges a full $2 a gallon more for ethanol free that may just be regular octane.

And you cut half my response there. The part were I said all midgrade gas was a rip off in term of price. Even when it seems reasonable, it is more than if you bought the regular and premium separate, and mixed them yourself.

 

Up here we don't have pennies any more, so for cash purchases they're rounding to the nearest nickel. For example: $1.22 becomes $1.20, and $1.23 becomes $1.25.

Regarding higher octanes: isn't there sole purpose to resist ignition better, a requirement of higher compression engine, typically spec'd in the Owner's Manual.

And even where higher octane is spec'd,, If you put in regular the typical computer controlled car will retard ignition timing as required, if it detects knocking? Net result would be slight "performance" loss?

 

Keep passing it.
There is no justification for that......but they know that some people are just stupid so they can get away with it.

It's similar for the last gas station before a major airport charging a dollar a gallon more than the going rate........because they know that people returning rental cars won't pay attention to the price.....OR don't have time to go elsewhere and get a fair price.

The point IS that it is not common practice.
Mid-grade is typically 20 to 40 cents more and "premium" is another 20 to 40 cents.
That is at most an 80 cent difference from low to high octane.

 

Yes. But only if it is "spark knock" where the fuel burns too fast when the spark hits.

Unless the car has variable valves and a more complicated detector and a different computer, it can NOT do anything to compensate for compression knock, one that occurs because the fuel ignites early BEFORE the spark hits.

 

More accurately, the higher octane resists spontaneous ignition from compression better.

Part of the performance loss from the lower octane is lower efficiency. Cars that can run the higher octane can get better MPG. In my experience with the current price spreads, the better fuel economy doesn't make up for the higher price.

 

What about card transactions? Is it exact amount or still rounded to nearest nickel? A penny saved is a penny earned. I wonder if it's saving or losing. Now, I remember the old Superman movie in which, Richard Pryor was a con man who discovered a way to divert pennies rounded up in companies transactions and summed all up into a check to himself amounting to thousands. Is there way to do something like that? lol