94 octane at petro canada

[JPO]

Re: 94 octane at petro canada

Fark. From their website:

"Does Ultra 94 contain ethanol? Does Petro-Canada still offer an ethanol-free gasoline?
Ultra 94 contains ethanol. Due to the fact that various fuel grades are blended at the point of sale, most grades of Petro-Canada fuel may now contain up to 10% ethanol. This represents a change from the previous state, where premium fuel was ethanol-free at Petro-Canada."

[Lars]

Re: 94 octane at petro canada

The one in Cranston is about 2 mins from my house.

[All_Euro]

Re: 94 octane at petro canada

Still nice to have more 94 octane options.

[bart]

Re: 94 octane at petro canada

The one in Cranston is about 2 mins from my house.

is it a dedicated pump?

[RONDAL]

Re: 94 octane at petro canada

94 has ethanol but its far less than is found in the rest of the grades.
They cant say its ethanol free because it can be mixed at POS and because unless it has dedicated hose it'll mix there regardless.
As far as I am aware though they dont go out of their way to add more into the mix like they do for lower grades

[Lars]

Re: 94 octane at petro canada

is it a dedicated pump?

Nah it's the same hose so itll mix a bit but it's better then nothing

[Kor]

Re: 94 octane at petro canada

Pretty sure I read a long time ago that there are more BTU's of energy in low-ethanol octane "Regular" than high-ethanol "Premium", so theoretically that means more combustion power - but you can advance the timing more with the ethanol, putting more power into an amount of time. As long as your engine will actually adapt timing sufficiently.

[morris400]

Re: 94 octane at petro canada

so just to clear this up...both husky and petro have 94 with 10% enthnol?

[MechEngg]

Re: 94 octane at petro canada

"Up to 10% ethanol" yes

[shconer]

Re: 94 octane at petro canada

This was posted on CVD so I thought I would post my response here to. Oxygenated fuels like ethanol have a higher octane rating mostly due to the high oxygen content. The higher oxygen content meaning oxygen is part of the fuels chemical makeup, and is chemically bonded. So this can be deceiving because even though the octane rating is higher the extra oxygen content means the fuels density is lower and therefore contains less energy. Furthermore an engine must be tuned more specifically because not only is the fuel less dense but its oxygen is injected into the combustion process unmeasured by the ECU. This causes the engine to run leaner and a modern fuel injection system will compensate its fuel trims with closed loop O2 monitoring. But even a modern system may not be able to fully compensate during fuel enrichment. Also going back and forth between different fuels negatively affects performance because some time is necessary to readjust the fuel trims. An exception to this may be flex fuel capable vehicles that can measure and compensate for fuel density. So a properly tuned engine will have to deal with the lower fuel density by running richer and trying to maximize the benefit of higher octane. In the end extra power may be difficult to achieve and will always consume more fuel. If you have an older car that cannot correct a leaner burning engine then power will be lost. So basically alcohol blended fuels are bad for street driven cars that are not properly tuned for it. Also ethanol absorbs water more readily.

[Kor]

Re: 94 octane at petro canada

Really tough choice it would be nice if someone offered a 93 non-ethanol or something... most of the programs out of the US seem to be tuned for 93 octane fuel anyway?

[R_Ethug]

Re: 94 octane at petro canada

yea.. the s4 runs great on the apr 93 program with 94 mohawk.. works fine.. i'll maybe try this if i run into it

[RONDAL]

Re: 94 octane at petro canada

This was posted on CVD so I thought I would post my response here to. Oxygenated fuels like ethanol have a higher octane rating mostly due to the high oxygen content. The higher oxygen content meaning oxygen is part of the fuels chemical makeup, and is chemically bonded. So this can be deceiving because even though the octane rating is higher the extra oxygen content means the fuels density is lower and therefore contains less energy. Furthermore an engine must be tuned more specifically because not only is the fuel less dense but its oxygen is injected into the combustion process unmeasured by the ECU. This causes the engine to run leaner and a modern fuel injection system will compensate its fuel trims with closed loop O2 monitoring. But even a modern system may not be able to fully compensate during fuel enrichment. Also going back and forth between different fuels negatively affects performance because some time is necessary to readjust the fuel trims. An exception to this may be flex fuel capable vehicles that can measure and compensate for fuel density. So a properly tuned engine will have to deal with the lower fuel density by running richer and trying to maximize the benefit of higher octane. In the end extra power may be difficult to achieve and will always consume more fuel. If you have an older car that cannot correct a leaner burning engine then power will be lost. So basically alcohol blended fuels are bad for street driven cars that are not properly tuned for it. Also ethanol absorbs water more readily.

thanks!
you saved me the essay i had come here to write after just going through the info at work today on it.
coles notes of the above: ethanol has 2/3 the energy vs gasoline if comparing equal quantities.

ethanol does not give you more oomph

As an aside, the reason we run ethanol is because it lowers the emissions coming out of the tailpipe. The whole thing got started due to gov't subsidies and wanting to give farmers who were seriously suffering a market to sell their corn. Ethanol is a by-product of crude refinement, but was stopped after the farming subsidies came into effect. Farmers union pushed gov't for the 10% ethanol content for gasoline to give them market to sell into. That's all stopped as of Dec 2011, they are trying to push to 15% now but not gaining traction. Be interesting to see going forward if we see ethanol content drop or stay at 10% for emissions reasons

[stef2.7t]

Re: 94 octane at petro canada

Yup because they picked up that fourth option. This is all thanks to Petro scooping up the Canadian Portion of Sunoco Gas.

[JPO]

Re: 94 octane at petro canada

Lots of petro canada stations now have the 94. Popping up all over.