Esso Gas now has 93?

[starscream]

Anyone notice that Esso is starting to carry 93 in the city almost at all station (atleast the 3 I visited).

I was going with my GF as she has esso points and yadda yadda....noticed on 3 different occasions they have a 93 gas now. Anyone try it and notice a different in knock (more or less?) or any difference in tuning?

I suppose since Petro/Sunoco had the 94 market cornered that it was only time before someone else came out with high octane gas...(Sadly I dont know if people remember the Pioneer Magnum 94 gas LOL sounds pornstar-ish).

[loki]

think this was brought up somewhere on here a little bit ago

[loki]

also you can tune your car for any Octane fuel

so 94 vs. 93 shouldn't matter. Plus the OTS maps from Cobb are for 93

[S.F.W.]

I would be curious the impact on tuning 93 vs. 94. Would there be a significant difference ? Fobio

[ottoyu34]

I would be curious the impact on tuning 93 vs. 94. Would there be a significant difference ? Fobio

Interested in hearing about the difference in octane level as well as the difference ethanol plays.

Cause I am looking at Shell V-power 91 which has no ethanol.

[SomeGuy]

I would be curious the impact on tuning 93 vs. 94. Would there be a significant difference ? Fobio

The octane rating is essentially knock resistance...so you should theoretically be able to run more boost/timing on 94 than 93 (than 91) with all other factors being equal. However the difference in 1 point will probably be very minimal (less than 1 degree timing and/or 5whp maybe).

I think the best way to look at this is if you have a tune for >91 octane, this gives you a backup place to fill up.



Interested in hearing about the difference in octane level as well as the difference ethanol plays.

Cause I am looking at Shell V-power 91 which has no ethanol.

Ethanol helps resist knock as well, just has less "power" (energy) available per unit measure of the fuel hence why people like ethanol free because you get better mileage usually. There's also some other little things about combustion temps and cleanliness of the fuel system with it but it's nothing to worry about on our cars as we have bigger issues (DISI, EGR, etc).


*edit*

You don't have a speed 3? Pft, run 87 you fool.

[Fobio]

I would be curious the impact on tuning 93 vs. 94. Would there be a significant difference ? Fobio

Not very likely a huge difference. But on matters like this, you can either test the gas at your own cost or let time tell the difference. The factors that'd concern me most is how that octane is achieved. With U94, we know it's has a certain amount of ethanol to increase its octane. Without discussing the merits and detriments of ethanol, I'd assume since most gas are refined locally from only a handful of sources, that a similar approach may be used and the difference in octane may result solely from a difference in the amount of ethanol used. If this is the case, then its effect on the tune is negligible...but again, unless there's quantifiable proof, one can not say for certain.

And to clarify the need for octane...even IF you're tuned for 94, you can still run 91 in a pinch...just don't floor it or full boost. Also, the higher octane is to prevent knock....higher octane by itself doesn't equate to more power.

[shift8]

The thing I like about this, is that around here (at least, Brampton) the Petro stations with 94 and car washes are done via rail. The Esso near me with a car wash is touch free (drive in and park, no rail). For winter I don't care about the rail, but summer... more weary to avoid any sort of curb rashing.

[ottoyu34]

The octane rating is .....ith it but it's nothing to worry about on our cars as we have bigger issues (DISI, EGR, etc).
*edit*
You don't have a speed 3? Pft, run 87 you fool.

Thanks for your input.

But, I don't have to drive a speed3 to participate discussion or educate myself, do I?

I run 87 tyvm.


Not very likely a huge difference. But on matters like this, you can either test the gas at your own cost or let time tell the difference. The factors that'd concern me most is how that octane is achieved. With U94, we know it's has a certain amount of ethanol to increase its octane. Without discussing the merits and detriments of ethanol, I'd assume since most gas are refined locally from only a handful of sources, that a similar approach may be used and the difference in octane may result solely from a difference in the amount of ethanol used. If this is the case, then its effect on the tune is negligible...but again, unless there's quantifiable proof, one can not say for certain.


That leads me to my ultimate question; Shell 91 with 0% ethanol verse Petro 94 with 10%~ ethanol? I am sure not a lot of people actually bother to find the difference. I am just imaging a speed3 for example, with 91 will have more risk of knocking with high energy level, while Petro 94 has less knock risk but less energy level. Which will yield more whp.

[Polish_Eagle]

Thanks for your input.

But, I don't have to drive a speed3 to participate discussion or educate myself, do I?

I run 87 tyvm.



That leads me to my ultimate question; Shell 91 with 0% ethanol verse Petro 94 with 10%~ ethanol? I am sure not a lot of people actually bother to find the difference. I am just imaging a speed3 for example, with 91 will have more risk of knocking with high energy level, while Petro 94 has less knock risk but less energy level. Which will yield more whp.

If I'm running my 94 octane tune and put 91 in, I get plenty of knock under boost. Though 91 offers much better mileage as I can get 550 km but the same tune with 94 usually gets me about 480 km at best (60% hwy and 40% city). Winter time I run 91 but summer I always run 94 due to heat and the higher likelihood of knocking because of the increased temps.

[captobvious75]

Basically, the higher the ethanol in fuels, the more fuel needed to make a combustion vs 0 ethanol fuel. That's why you go further on a tank with shell 91 than 10% ethanol 94

[Flagrum_3]

Basically, the higher the ethanol in fuels, the more fuel needed to make a combustion vs 0 ethanol fuel. That's why you go further on a tank with shell 91 than 10% ethanol 94

The way I understand it is; The higher the octane rating the slower the combustion burn, hence less likely to produce knock. But with the addition of ethanol, how does it change the octane rating is what I'm wondering....it may be hype, maybe?

[captobvious75]

The way I understand it is; The higher the octane rating the slower the combustion burn, hence less likely to produce knock. But with the addition of ethanol, how does it change the octane rating is what I'm wondering....it may be hype, maybe?

I was talking from a pure mpg perspective. Higher the ethanol content, the lower your MPG

[Stathakos]

For some reason my car hates Esso gas. I get the shittiest mileage while on Esso, so only Shell for me!

[loki]

My car doesn't do well with Esso gas either

[Default User]

I always preferred top tier fuel

http://www.toptiergas.com/retailers.html

And when I can get it - ethanol free

http://pure-gas.org/index.jsp?stateprov=ON

That being said - I always fuel up on Shell (for the air miles points) 😏

[loki]

http://img.tapatalk.com/d/14/04/26/e8ujy5ur.jpg

[mazda3t]

Never liked Esso thought it to be cheap fuel. Didn't want to go petro until someone me told the ethanol will give added power.

[fywdyl]

Never liked Esso thought it to be cheap fuel. Didn't want to go petro until someone me told the ethanol will give added power.

Not on its own it won't, your friend lied to you.

[mazda3t]

With a tune of course...


Not on its own it won't, your friend lied to you.