best gas in western canada?
- Thread starter wowgogs
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C
cortez
Well-known member
personally i opt for Chevron 94 octane. To my knowledge there is no ethanol in it... yet. I know in automobiles ethanol blends can actually produce more power than regular gas, thats what i burn in my turbocharged cars.... but i have heard bad reviews about running it in new sled engines, especially injected ones
I try to stay away from the big names with all the cleaners(like techron etc)because they must work against the oil in the mixture.JMHO
R
Red-eye
Well-known member
Can you point out some info on Ethanol blends and more power. I would like to read on that and compare with info I have read? As far as I new it was the other way around thats why you have to jet up just to get the same performance out of ethanol blends.
Canadian Chevron has no ethenol to my knowledge... US chevron does.
I run 94 in my M3 in canada, and in the US the 92 has a different smell. I've been told that its the ethenol...
I run 94 chevron in both my sleds. Sometimes i switch it up and throw in some 92. Never had an issue.
Chaz
I run 94 in my M3 in canada, and in the US the 92 has a different smell. I've been told that its the ethenol...
I run 94 chevron in both my sleds. Sometimes i switch it up and throw in some 92. Never had an issue.
Chaz
C
cortez
Well-known member
This basically explains what i was referring to with turbocharged engines. I spend quite a bit of time working on and tuning my high hp subaru turbo engines, and amongst the tuning communities its pretty widely accepted that Ethanol blends can put down more power than comparable gasoline. Its also been shown on many dynos, same engine same car, same day. Heres a few paragraphs on it from wiki
"E85 has an octane rating higher than that of regular gasoline's typical rating of 87, or premium gasoline's 91-93. This allows it to be used in higher compression engines which tend to produce more power per unit of displacement than their gasoline counterparts. The Renewable Fuels Foundation states in its Changes in Gasoline IV manual, "There is no requirement to post octane on an E85 dispenser. If a retailer chooses to post octane, they should be aware that the often cited 105 octane is incorrect. This number was derived by using ethanol’s blending octane value in gasoline. This is not the proper way to calculate the octane of E85. Ethanol’s true octane value should be used to calculate E85’s octane value. This results in an octane range of 94-96 (R+M)/2. These calculations have been confirmed by actual octane engine tests." [5]
One complication is that use of gasoline in an engine with a high enough compression ratio to use E85 efficiently would likely result in catastrophic failure due to engine detonation, as the octane rating of gasoline is not high enough to withstand the greater compression ratios in use in an engine specifically designed to run on E85. Use of E85 in an engine designed specifically for gasoline would result in a loss of the potential efficiency that it is possible to gain with this fuel. Using E85 in a gasoline engine has the drawback of achieving lower fuel economy as more fuel is needed per unit air (stoichiel ratio) to run the engine in comparison with gasoline. This corresponds to a lower heating value (units of energy per unit mass) for E85 than gasoline. Some vehicles can actually be converted to use E85 despite not being specifically built for it. Because of the lower heating value E85 has a cooler intake charge, which coupled with its high stability level from its high octane rating, has also been used as a "power adder" in turbocharged performance vehicles. These modifications have not only resulted in lower GHG emissions, but also resulted in 10-12% horsepower and torque increase at the wheels. Because of its low price (less than $2.00/gal in some places) and high availability in certain areas people have started to turn to using it in place of the high end race fuels that typically cost over $10.00/gal."
heres the link if you want to read the rest, but what i pasted above essentially explains it.
http://en.wikipedia.org/wiki/E85[/URL
R
Red-eye
Well-known member
Thanks for the info but if ethanol is so good for compression then why do head designers not want to sell you high compression domes because the quality of fuel is not there? Good fuel is not based on octane alone. Because you have a turbo anything doesn't mean the fuel is better. I ran a full alcohol blower on a mud bogger. That doesn't mean the fuel is good for a newer two stroke engine. I will have to do some more reading on this as I do not believe Wikipedia, as It is not always fact because it is can be writen by anyone. I run a shop and repair many different engines. Fact, most of my fuel problems come from ethanol based fuel.
C
cortez
Well-known member
I dont recall EVER saying that ethanol blend was good for a 2 stroke engine. In fact if you read my first post i said i knew nothing about it other than bad reviews for 2 strokes. Also, not trying to get in a pissing match here over your knowledge on engines/fuel. Im fully aware that the energy content of fuels is dictated by more than just an octane rating, after all, i'm a registered professional engineer. All i said is I know in my turbo charged engines (cars) it puts down more power on a dyno, and alot of guys have verified it when tuning cars. As for wikipedia, it can be written by anyone, and so can anything else. However, in wikipedia there is the ability for open public peer review, most of it by very educated people, something which eliminates individual biases, and doesnt exist in books/magazines.
around here (pg) all the other companies get fuel from esso and mix thier own recipies of additives,chevron 94 is ethanol blended.....esso is the cleanest ...
For the past 3 years I have ran Chevron 94 except for 2 occasions where I ad to run 92 due to fuel availability. I have always wondered about the great ethenol debate
most 91 octane fuel in BC is ethonol free all 87 and 89 apparently have up to 10 % blend overall its a law now apparently sent an email to husky canada and got good response thier 91 octane marked premium is ethonol free in BC
here in kamloops most of the stations get thier fuel from the same bulk tank so i think it means all 91 octane fuel is ethonol free?? i know shell and husky are 91 eth free for sure hope this helps B
you guys should read the labels on the pumps as shell and husky advertise as 10% ethanol ,why ask questions and ignore the awnser,good luck boys
R
Red-eye
Well-known member
I wasn't trying to get into a pissing match with you and am sorry if I sounded like that. I am trying to learn and open the facts to readers on this forum. I agree with you about wikipedia and the reviews. I don't think the engineer card is necessary as I have seen doctors and engineers make just as many mistakes as any other person.
I think some of the good points of ethanol fuels are weak only and pertain to 4 strokes and 2 strokes in the same way. The fuel might be good for octane and even more power but for a very short time as the quality is not there as in retaining water, fuel deteriation,seperation and other engine damage.
http://www.fuel-testers.com/list_e10_engine_damage.html
(some info on ethanol)
I always run Chevron 94 in my sleds/outboards/small engines and high performance vehicles. It says right on the pump - no ethanol.
emailed huskys head office about that and local rep contacted me and said no ethenol in marked premium 91 octane....only info i got
I haven't bought any premium in a month or so but have always ran Shell Gold/V power 91 and it says or at least did last I looked anyhow on the pump contains no ethanol and as far as Chevron 94 goes I wouldn't run it as I talked to a rep and was told that it is indeed blended with 10% ethanol.
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