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      07-02-2013, 10:08 AM   #1
ShaneN.
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Chevron 94?

I'm in BC and the only thing higher than 91 readily available is 94 chevron. so many people swear by it as it has no added ethanol but i'm also hearing lots of conversations about FI applications having timing retarded or having knock while using it.

So all you guys with tunes, what mods/tunes are you running on which gas station and which octane?

I'm essentially looking at the jb4 vs cobb tunes and it looks like the cobb stage 2 aggressive performs well but that'd require me running pretty much only chevron 94. now, i'm hearing shell 91 is highly loved by the FI crowd but i'm not hearing as good things about the cobb stage 2 sport tune, so i'd think if the chevron 94 is crap then you'd be better off with jb4 map 5 or something.

Tunes aside, I'm interesting in knowing what tune and mods you're running on which gas. Particularly in western canada. It would be a shame to order a tune based on wanting to run the 93octane tunes and then finding that our 94 chevron isn't cutting it.

I did a few hours of reading through the threads and I'l post some of the threads detailing discussions if you'd like to do some reading too however this all came about when i was talking to one person whom is a tuner/shop owner and another who has a friend with a switzer GTR and they both commented that the US 91 octane is better than the 94 chevron. The switzer GTR is tuned in the states on 91 or 92 (can't remember) and when he fills up with chevron 94 it's pulling boost. The shop owner notes that he can run more timing in his built motor/whipple lightning with US 91 versus our local Chevron 94. Which are similar things to what i'm reading in some of these random forum threads (below)

Basically what I'm getting at is I wonder if the chevron 94 is good enough to run the 93 octane tunes, which it sounds like it's not. Apparently husky 94 WAS really good but it's not around anymore. Anyone have any input?


edit: please read this, a local forum talking about this EXACT topic and about our gas in general:

http://www.revscene.net/forums/68154...dien-fuel.html

Quote:
Originally Posted by Triballurker View Post
They have a lower octane rating but ive been reading on a bunch of forums saying that guys running chevron 94 are getting alot of knock issues and have started going down to the states to fill up with 92 and get less knock on the 92.

From a tuner stand point ive read that our 94 tunes like California 91.


also stating the same thing:
http://www.gtrlife.com/forums/topic/...need-feedback/

couple more:
http://www.niclub.ca/forums/showthre...-vs-Chevron-94
http://www.niclub.ca/forums/showthre...Y-FROM-CHEVRON!!
http://www.n54tech.com/forums/showthread.php?t=9393
http://bchondas.com/forum/showthread...-vs-Chevron-94
http://www.westernsubaruclub.com/smf...=13233.0;nowap

Last edited by ShaneN.; 07-02-2013 at 11:15 AM.
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      07-02-2013, 11:24 AM   #2
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ah crap, you won't be able to read the revescene thread. some of the quotes from it:

Quote:
Originally Posted by dared3vil0 View Post
I used to run chevron 94, Now i run shell 91 and according to datalogs the shell knocks less than the chevron.


Quote:
Originally Posted by Triballurker View Post
So ive come to realize that our fuel in Canada sucks...

Ive had a knock issue with my tune for quite some time and have been chasing it down, and in the end I think its down to the tune.

Its tuned for 91 but its a canned tune from the states.

Ive always ran Chevron 94 thinking its the best out there but after alot of reading it seems alot of people are having the same sort of issues I have.

So the question is..:

Has anyone found a fuel other than race fuel that doesnt seem to knock as much?

Ie Shell, Petro etc?

Or am I just going to have to learn to tune and tune my car for the gas we have up here and maybe add some meth.

Quote:
Originally Posted by Triballurker View Post
They have a lower octane rating but ive been reading on a bunch of forums saying that guys running chevron 94 are getting alot of knock issues and have started going down to the states to fill up with 92 and get less knock on the 92.

From a tuner stand point ive read that our 94 tunes like California 91.

Just interesting overall...I thought a octane rating was a octane rating and it was all the same.

Just trying to see if any tuners have found less issues with lesser octane rated fuels locally or if a "local 94" tune is in need.

Quote:
Originally Posted by Muskys SS View Post
Our fuel is definately worse than American fuel. It has been proven on our dyno countless times with US based tunes detonating on the dyno. We recently conducted a test of our Chevron 94 vs. US Chevron 92 on one of our employee's 2002 stock Subaru WRX. The subaru is a good test vehicle because it has exceptional knock detection and is viewable on our datalogger.

The first series of tests were conducted at equal boost and ignition timing values with no knock detected.

Test 1 - US Chevron 92 octane:
We did 7 back to back dyno runs with which varied from 170-172whp.

Test 2 - CDN Chevron 94 octane:
We did another 8 back to back runs which varied from 162-164whp.

Surprisingly that's around a 5% difference in power at the same boost level and ignition timing value. Another interesting fact was that the US 92 ran slightly leaner than our 94 which must of contributed to the power gain.

This test didn't tell us anything about the detonation resistance of our 94 versus the US 92 but interesting data none the less. We will be conducting more tests down the road and will be posting the results under this section.
Quote:
Originally Posted by jing View Post
A guy I know ran into issues with knocking when running Chevron 94 but after he switched back to 91 the problem went away. This was on a vehicle with quite an amount of engine modifications b
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Quote:
Originally Posted by Triballurker View Post
Umm....its a canned tune..

From the states.

If it knocks on 94......how do you think 91 is going to do.

But after reading about Chevron 94 not being the best and guys are getting less knock on different gas..im going to try 91, and also US 92.

Quote:
Originally Posted by RacingGreed View Post
94 Chevron is still better than 91 Chevron. We've confirmed this on the dyno. Some people have said that 91 Shell is better than 94 Chevron. We haven't tested this yet but we will soon. Hopefully R. Mutt can chime in soon and let us know how his datalogs turn out
Quote:
Originally Posted by reza View Post
first time i took the gto down to states and filled up on 92 chev/texaco i FELT the car ran better, but didnt take my datalogger so i thought nothing of it.

second time took my logger.
i was able to run an average of 2deg more timing in my whole band before knock.
filled with 94 again, knock came back and had to back off the timing.
all on 11afr, 17psi.
im convinced.
doesnt really matter now that im running meth inj.

after reading some of the comments here im thinking of trying shells 91. was always put off cause its same price as chev 94 and 3 less octane.
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      07-02-2013, 10:22 PM   #3
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Chevron 94 sucks. I'm running with full bolt ons and I make the trip to US to get Shell 92 there. Car responds way way better! I'm close to the border so its a 15-20min trip for me plus its cheaper! For $100, I get a full tank plus 2 Jerry Cans so almost another tank! Here, at $1.60 a liter, its just crazy and its shitty gas as well!
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      07-03-2013, 02:04 AM   #4
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Quote:
Originally Posted by badass335 View Post
Chevron 94 sucks. I'm running with full bolt ons and I make the trip to US to get Shell 92 there. Car responds way way better! I'm close to the border so its a 15-20min trip for me plus its cheaper! For $100, I get a full tank plus 2 Jerry Cans so almost another tank! Here, at $1.60 a liter, its just crazy and its shitty gas as well!
That's pretty much exactly what I'm hearing but a mid 20s guy in a bmw with a shaved head crossing the border every couple days is just going to be more annoyance than it's worth. It's so inconvenient too. I appreciate the post though, gives me an idea of what guys are doing. Anyone else? I'm not sure if you local guys are signed up on revescene and can read that thread but it sounds like the shell 91 v power is actually better than the chevron 94. hell they even say the shell 92 with ethanol runs better than the 94 without. not many options around here.


on a side note, when i do a serach on the husky website it says the gas station in cloverdale still has their 94 pump. it was pretty much our only decent option, wasn't it? if it's still there, that's not all that far from me. not very convenient but it's there. i should look into that.
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      07-03-2013, 01:15 PM   #5
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Sorry for thread jack....

What about Ultra 94 @ Petrol Canada in Ontario?? is it the same as RON 93 in US??
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      07-04-2013, 01:03 AM   #6
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no worries, i'd like to learn as much as possible about this subject. we really don't have much options. in two of those threads i posted, two guys can't even use a 91 octane OTF tune without some knock. one was a gtr with just a cobb tune and the other was, i think, an sti with just a tune too. this is really discouraging.


make me think that the best setup for me might be to get the jb4 and run the 91 v power on map 5. i'd think the autotunning map would handle this issue best?

i might post this in another section to get some of the tuners/other peoples thoughts.
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      07-04-2013, 03:32 PM   #7
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I'm curious which Husky in Cloverdale as i'm here so can test it out!

Quote:
Originally Posted by ShaneN. View Post
That's pretty much exactly what I'm hearing but a mid 20s guy in a bmw with a shaved head crossing the border every couple days is just going to be more annoyance than it's worth. It's so inconvenient too. I appreciate the post though, gives me an idea of what guys are doing. Anyone else? I'm not sure if you local guys are signed up on revescene and can read that thread but it sounds like the shell 91 v power is actually better than the chevron 94. hell they even say the shell 92 with ethanol runs better than the 94 without. not many options around here.


on a side note, when i do a serach on the husky website it says the gas station in cloverdale still has their 94 pump. it was pretty much our only decent option, wasn't it? if it's still there, that's not all that far from me. not very convenient but it's there. i should look into that.
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      07-04-2013, 05:54 PM   #8
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where exactly do you live? i'm right around scott road, delta side.

When I do the store locator on the website and then select 94 all the stations drop off the map except for the the following, let me know if you stop by there please. I don't have much reason to take this CR-V by there.


Cloverdale Husky

5604 - 175th St.
Surrey, BC
(604) 576-9727
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      07-04-2013, 05:56 PM   #9
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Der, phone number. I called, they don't have it. So weak. We have like the absolute best air and altitude and the absolute worst gas.
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      03-02-2014, 11:17 PM   #10
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Bringing this thread back as I'm in the same boat and searching for answers, I'm in Victoria and use shel 91 as I hear it's the best but I'm now running a cobb stage 1 sport and my data logs seem to point that shel gas may not be cutting it. I'm going to fill up with chevron 94 and do some data logs just have to run the tank low. No one answered in regards to petro canada 93 I think we get here or 92 can't remember. So much for hoping to run stage 1 aggressive.
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      03-03-2014, 01:50 AM   #11
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Petro can only has 91 in Vancouver area. 94chevron was ok on my car but I run meth. 92 shell from USA is what I run and the difference is pretty amazing. If I can't make it across the border, I'll run shell 91 or last resort chevron 94. Keep in mind I ran chevron94 for the first 3years of my car exclusively.
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      03-03-2014, 08:11 PM   #12
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Quote:
Originally Posted by badass335 View Post
Petro can only has 91 in Vancouver area. 94chevron was ok on my car but I run meth. 92 shell from USA is what I run and the difference is pretty amazing. If I can't make it across the border, I'll run shell 91 or last resort chevron 94. Keep in mind I ran chevron94 for the first 3years of my car exclusively.
Question, so why shell 92 not chevron 92? I frequent visit Point Roberts and i always tank up with Chevron 92, i like chevron because that techron thing really works (even though i know it doesnt do much to our DI cars).

Here in vancouver, i always do chevron 94 since it has higher octane (i was assuming that higher octane = better for our FI cars? no?
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      03-03-2014, 08:19 PM   #13
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shell 91 all the way if your read the label find prints chevrons 94 is shells 91 octane from 87 -91 at chevron still as up to 10% ethonal as to shells 89 where the label states may contain up to 5 and 91 no ethnoal period. would it be better for you guys to run race fuel? or am i mistaken on this matter
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      03-04-2014, 03:56 AM   #14
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I've been running Chevron 94 ever since I got my car because it has no ethanol in it. I'm going to try Shell 91 since I read it makes the engine run much smoother and better mileage. However, I haven't had any problems with Chevron and still on original spark plugs/coils.
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      03-05-2014, 02:48 PM   #15
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Shell 92, or chevron 92 USA fuel has up to 10% ethanol. I believe the ethanol helps with cylinder cooling as the guys running e70 or e85 can attest to.

Had a buddy dyno his gtr with chevron 94 and then drive to USA, fill up, drive car back to same dyno and gain 10whp. I find my car has no timing drops with Shell92.
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      03-06-2014, 12:55 PM   #16
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Quote:
Originally Posted by badass335 View Post
Shell 92, or chevron 92 USA fuel has up to 10% ethanol. I believe the ethanol helps with cylinder cooling as the guys running e70 or e85 can attest to.

Had a buddy dyno his gtr with chevron 94 and then drive to USA, fill up, drive car back to same dyno and gain 10whp. I find my car has no timing drops with Shell92.
xD Then wouldn't chevron 91 here in Canada be similar? Up to 10% ethanol and only 1 octane less. But i get what you mean, its cheaper and because of US blend, the ethanol content should be more significant even though in the Canadian one states "up to" 10%.

So simply put, shell 92 and chevron 92 in the US should be no different? At least in your experience and knowledge, Thanks!
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      03-07-2014, 12:59 PM   #17
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For some reason, the supreme fuel here (91oct) isn't as good as the supreme 92oct in the USA. We've tried iron the dyno and it makes a difference. On my BMW, it wasn't huge but it made a big difference on my buddy's Audi S4.
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      03-08-2014, 02:01 AM   #18
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i havent had any luck with any 94 octane in alberta or bc. it contains ethanol usually to bring the octane rating up which is shit. on my twin turbo srt8 jeep with very little timing in it i was getting lots of knock, went back to shell 91 which has a solid 4* more timing and not even a count of knock and i have the sensors set very sensitive.
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      03-13-2014, 09:40 PM   #19
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Husky 94 is available just up the street from me and i got my COBB v3 last week and was thinking about trying it but was on the fence. It's very expensive at $142.9 but i think i might fill up with it and see if things change compared to my usual Shell 91.
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      03-14-2014, 03:47 AM   #20
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Where are you located?
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      03-14-2014, 07:38 AM   #21
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      03-14-2014, 02:12 PM   #22
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Originally Posted by sy2767 View Post
Husky 94 is available just up the street from me and i got my COBB v3 last week and was thinking about trying it but was on the fence. It's very expensive at $142.9 but i think i might fill up with it and see if things change compared to my usual Shell 91.
OMG so jealous!!! BC regular is $142 right now... premium gas is close to $160
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