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View Poll Results: Chevron 94 or CO-OP 91 (Ethanol Free)
Chevron 94 15 78.95%
CO-OP 91 (Ethanol Free) 4 21.05%
Voters: 19. You may not vote on this poll

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Old 03-20-2014, 11:58 PM   #1
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Question Chevron 94 or CO-OP 91 (Ethanol Free)

Chevron 94 or CO-OP 91

Which will the FR-S run better on?
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Old 03-21-2014, 06:34 AM   #2
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I have a similar choice. Petro Canada 94 with ethanol, or Shell 91 without ethanol. It's not much of a difference this time of year, but in the heat of summer, the car runs noticeably better on the 94. The crickets chirp like crazy on the 94 though.
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Old 03-21-2014, 09:14 AM   #3
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I have a similar choice. Petro Canada 94 with ethanol, or Shell 91 without ethanol. It's not much of a difference this time of year, but in the heat of summer, the car runs noticeably better on the 94. The crickets chirp like crazy on the 94 though.
I found some posts online that seem to state Chevron 94 is actually Ethanol free in British Columbia. It has a separate pump.

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Old 03-21-2014, 09:38 AM   #4
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So, ethanols are causing our pump to make noise?
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Old 03-21-2014, 09:40 AM   #5
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So, ethanols are causing our pump to make noise?
Crickets like ethanol apparently

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Old 03-21-2014, 10:01 AM   #6
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Originally Posted by roddy View Post
I have a similar choice. Petro Canada 94 with ethanol, or Shell 91 without ethanol. It's not much of a difference this time of year, but in the heat of summer, the car runs noticeably better on the 94. The crickets chirp like crazy on the 94 though.
Same dilemma, I think I'm going to try running Ultra94 this summer.
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Old 03-21-2014, 12:24 PM   #7
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Due to the issues involving detonation/DI seals with our cars, I would always run the highest octane available, especially if you push the car hard. Ethanol supposedly has a cooling effect too, which could also minimize detonation and possibly save your seals.

I can live with crickets and reduced MPG that come with ethanol.
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Old 03-28-2014, 10:01 PM   #8
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Exclamation Chevron Gasoline

Received a reply to my e-mail yesterday from Chevron.

"Thank you for the inquiry, and apologies for the delay in getting a response sent out to you. Your unanswered email was just brought to our attention.

As of January 1, 2010, BC's Reformulated Fuel Standard (RFS) requires that an average of 5% renewable fuel content be blended into all gasolines. To meet this mandate, Chevron Canada is now blending up to 10 volume percent ethanol into our Chevron Regular, Chevron Regular Plus, and Chevron Supreme gasolines. Chevron gasolines sold in BC may contain up to 10 volume percent ethanol. Where ethanol blended gasoline is sold, it is present in all three grades mentioned. Up to 10% ethanol by volume.

Regarding Supreme Plus (94 octane), it does not contain ethanol nor do we have any plans in the future to add ethanol to the product. Supreme Plus remains a core product in our suite of fuels and we plan to continue to offer it at our BC facilities.

The regulations provide sufficient flexibility for us to provide ethanol-free product to our customers on Vancouver Island for all grades of gasoline; and to our customer in the rest of BC for our 94 Octane grade. Please note that this represents the current situation, and the content of our fuels may change in the future, since our products are always clearly labeled as to ethanol content, we will provide notice of any changes.


Sincerely,

Chevron Fuels Technical Services"
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Old 05-28-2014, 04:16 AM   #9
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Originally Posted by Chad86 View Post
Received a reply to my e-mail yesterday from Chevron.

"Thank you for the inquiry, and apologies for the delay in getting a response sent out to you. Your unanswered email was just brought to our attention.

As of January 1, 2010, BC's Reformulated Fuel Standard (RFS) requires that an average of 5% renewable fuel content be blended into all gasolines. To meet this mandate, Chevron Canada is now blending up to 10 volume percent ethanol into our Chevron Regular, Chevron Regular Plus, and Chevron Supreme gasolines. Chevron gasolines sold in BC may contain up to 10 volume percent ethanol. Where ethanol blended gasoline is sold, it is present in all three grades mentioned. Up to 10% ethanol by volume.

Regarding Supreme Plus (94 octane), it does not contain ethanol nor do we have any plans in the future to add ethanol to the product. Supreme Plus remains a core product in our suite of fuels and we plan to continue to offer it at our BC facilities.

The regulations provide sufficient flexibility for us to provide ethanol-free product to our customers on Vancouver Island for all grades of gasoline; and to our customer in the rest of BC for our 94 Octane grade. Please note that this represents the current situation, and the content of our fuels may change in the future, since our products are always clearly labeled as to ethanol content, we will provide notice of any changes.


Sincerely,

Chevron Fuels Technical Services"
man i feel your pain chevron 94 is shit gas, i have had so much trouble tuning for this stuff, good tank, bad tank, bad tank ,bad .. bad ... good .. bad.. like its so inconsistant, and i went tru the trouble of tracking down the station that sells the most here in kelowna. and still.. i have a thread on this. but the chev 94 is garbage. it tunes like a bad 91. and shell 91 0ethanol tunes worse. so of all the gases it is the best, but still far inferior to us gas, ontario and quebec have great gas. I have been told by many people to use ethanol blended 91, because it does tame the knock even better than 94. i think in bc everything is so dam exspensive ppl will fill their 100k + sport suvs and cars with regular, to save a couple bucks. and that chev 94 isnt used enough.
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Old 05-28-2014, 04:18 AM   #10
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btw ethanol is dry, it wont lubricate so the crickets will appear , i run 2 stroke oil , ashless smokeless, it leaves absolutly no deposits , and it completly got rid of the crickets, worked wonders. use very light and increase by small amounts , and it also takes a tank or so to take effect, its not instant.
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Old 05-28-2014, 12:28 PM   #11
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Real Canadian Superstore's gas bars, have 91 Octane that is Ethanol Free.
There is a sticker on the pump indicating that it is Ethanol Free.


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as someone posted above, some chevrons in BC have ethanol free 94, if its 10% ethanol 94 vs ethanol free 91, i'm going ethanol free. Better MPG, slightly better performance and no chirping.
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Old 05-28-2014, 01:01 PM   #12
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Real Canadian Superstore's gas bars, have 91 Octane that is Ethanol Free.
There is a sticker on the pump indicating that it is Ethanol Free.
shell Vpower as well.
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Old 05-28-2014, 01:20 PM   #13
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Originally Posted by BC-Boy View Post
man i feel your pain chevron 94 is shit gas, i have had so much trouble tuning for this stuff, good tank, bad tank, bad tank ,bad .. bad ... good .. bad.. like its so inconsistant, and i went tru the trouble of tracking down the station that sells the most here in kelowna. and still.. i have a thread on this. but the chev 94 is garbage. it tunes like a bad 91. and shell 91 0ethanol tunes worse. so of all the gases it is the best, but still far inferior to us gas, ontario and quebec have great gas. I have been told by many people to use ethanol blended 91, because it does tame the knock even better than 94. i think in bc everything is so dam exspensive ppl will fill their 100k + sport suvs and cars with regular, to save a couple bucks. and that chev 94 isnt used enough.
Chevron 94 is supposed to be good on Vancouver Island and is ethanol free. I agree that it is worth the cost.
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Old 05-28-2014, 01:23 PM   #14
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Chevron 94 is supposed to be good on Vancouver Island and is ethanol free. I agree that it is worth the cost.
in prob 25 tanks, i did get 2 exeptionally good tanks, where i could run my most aggressive maps that were made for US 94, but i also got 2-3 tanks of mostly water where the car made poping noises out the exhaust and really stuttered, really bad gas, but typicly the average tanks i get here,kamloops,or in van , run like a 91 excypte with more tipin
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