Petrocanada 94 or shell 91?

[EsoBOFH]

Originally Posted by Heero

Ethanol just decrease fuel milage, other wise it aint so bad.

This is true.. there is no reason to be ethanol hating (there is a reason why race cars and dragsters use alcohol fuel!).

Ethanol has a way higher octane rating then gas, it just doesn't have the same energy available - about 66% in fact. So your mileage will drop, because you have to use more fuel to get the same power when mixed with Ethanol.. the bonus, though is that fuel rated as say 87 octane, is actually higher when they add Ethanol.

Major tuners in the states where E85 is common, prefer it for their fuel in mass power cars.. (4 digit hp).. for the massive octane ratings it has. They just need to use way bigger fuel pumps and injectors to compensate for the energy loss over straight fuel.

Alcohol is hygroscopic... (it wants to absorb water from the air) which is why so many people 'hate' on ethanol. I wouldn't leave ethanol fuel sitting in a tank for a year and then expect to use it without issues.. but for daily use, today's cars are built to deal with it, and no harm is done.

When you are paying so much for premium fuel, it make economic sense to avoid fuel that's ethanol blended. Another good reason to use Chevron premium fuels... the 94 pump is always a separate nozzle from the 87-91 fuel.

[7thgear]

No chevron in Ontario

so it's either Shell 91 (which i've always liked) or Petrocan 94

[Aznek]

How about Husky?

[7thgear]

Originally Posted by Aznek

How about Husky?

http://www.myhusky.ca/station_locato...cityID=Toronto

'There are no locations that match your search criteria."

[s2kdrew]

shell should be not bad since Ferrari F-1 racing team use shell, and according to FIA the fuel they use in race car must be somewhat at least 90% same as the fuel selling to the public. That's what I remember when watching a TV show, need to do some research on this again.

[BioRage]

Originally Posted by Aznek

How about Husky?

&

Esso

=





Shell + Air Miles / Air Miles Cash
Petro + Petro Points



=

[fenton]

Ethanol blended fuels will not hurt modern cars. The deterioration of the fuel system was for old cars where parts of the fuel system used rubber that would slowly get eaten away.

Your car will run better on 94, using the most timing and making the most power.

91 will not hurt the car physically but it also wont make as much power. The manual asks for 93 for a reason. Any fuel above 91 octane will also use something to increase the ocatane, be it ethanol or MTB like some stateside companies use.

Personally I had very good results with Husky 94 in my STI, any time i would run lesser fuel knock would start to creep up in my datalogs.

[Aznek]

Originally Posted by BioRage

&

Esso

=





Shell + Air Miles / Air Miles Cash
Petro + Petro Points



=

But petro-points blow! $70 a week in gas for the last 2 years and I don't think I have even earned a free car wash yet...

[BioRage]

Originally Posted by Aznek

But petro-points blow! $70 a week in gas for the last 2 years and I don't think I have even earned a free car wash yet...

Are you filling 94? think it's like 11,000 points for a car-wash.. but I don't even want to drive my car into them, unless it's winter time.. even than I would just go to a spray and wash.

Yeah I personally will go out of the way to find a Shell

[Aznek]

Oh, the $70 a week was for regular. My Accord, which I shared, had a 70 litre tank.

[smbrm]

see below

Originally Posted by EsoBOFH

Ethanol has a way higher octane rating then gas, it just doesn't have the same energy available - about 66% in fact. So your mileage will drop, because you have to use more fuel to get the same power when mixed with Ethanol..
Agree.

the bonus, though is that fuel rated as say 87 octane, is actually higher when they add Ethanol.

Highly unlikely, if it says 87 AKI and ethanol is included, then the AKI will be blended as close to 87 as statistically possible taking advantage of any octane contribution of the ethanol to deliver the 87.

True if you take 87 AKI from the pump which does not include ethanol and then add the ethanol.

One might conisder whether the benefit of advanced timing with higher AKI outways the engery content reduction from using an ethanol blend?