94 Octane in second location.

[QuA]

woo hoo!! Near hooters. Husky =) Lets get some NW 94 octane locations!

QuA

[R_Ethug]

Re: 94 Octane in second location.

umm which hooters.. one by mcleod?

[Kor]

Re: 94 Octane in second location.

More details please!!! Can anyone check the other Huskeys?

ALSO: I went to Esso today and they had returned to 92 octane! Previously it was reduced to 91 just like Petro/Shell.

If Esso has returned to 92 then I would say they are the next best gas in town.

[QuA]

Re: 94 Octane in second location.

Yup the one on mcleod

woo hoo!! Near hooters. Husky =) Lets get some NW 94 octane locations!

QuA

[PuppageVW]

Re: 94 Octane in second location.

Funk that, they need some NW places NOW!!

[1.8Trip]

Re: 94 Octane in second location.

More details please!!! Can anyone check the other Huskeys?

ALSO: I went to Esso today and they had returned to 92 octane! Previously it was reduced to 91 just like Petro/Shell.

If Esso has returned to 92 then I would say they are the next best gas in town.

Do you know if this is at all Essos? Or is it confirmed at only the one you went to?

I'll have to start checking out the Huskys and Mohawks in the NW. Who knows...

[Kor]

Re: 94 Octane in second location.

I am not sure about all Esso locations, I just checked the one by my house (Douglasdale).

I imagine that it is quite a hassle for them to change the labels on all the pumps...

[Mr. Burns]

Re: 94 Octane in second location.

the sticker on the pump at the esso by my house (Hidden Valley) still says 91

[Flanders]

Re: 94 Octane in second location.

you guys actually running programs that require 94?

[Kor]

Re: 94 Octane in second location.

you guys actually running programs that require 94?

If Simon reads this he will want to strangle me for not trying the 94 octane Upsolute... maybe when its a little warmer, just ask Bart how slow I am to change things on my car.

No one is using a 94 octane program, and at higher elevations you need less octane (Calgary is pretty high). However it might be the case that the ECU is retarding engine timing with high-air-flow mods... in theory. So even if you are not getting knocking you still may have room for improvement. The ECU may also be able to advance the timining within the parameters of the regular program depending on octane. I am not clear on the adaptability of the ECU.

I think higher octane gas will keep engine temperatures down, and as such should be extremely good for engines with lots of aluminum parts. High octane fuel is in general desireable in high compression engines and and forced induction engines. I think it also slows carbon buildup but I don't really know much about carbon buildup.

[Flanders]

Re: 94 Octane in second location.

I hear what you're saying, but I really don't believe that 'high air flow' mods are going to affect the timing. Less restriction on the intake isn't going to change the density of the air coming into the car....it just makes the car breathe better. You'd require some serious ram-air effect before making the volume of air more dense into your engine, which just ain't gonna happen

If all your engine needs is 91 octane, then anything above it is a waste of cash (seriously -- raising the octane from 87 to 91 costs the oil and gas companies almost nothing...yet they can charge 10 cents more for it. Not a bad markup!!). Higher octane gas is less prone to detonation...that's all. If it cleans carbon buildup, then it's just because of the extra additives they throw in there. If anything, I'd figure out if your car is knocking to begin with (which I don't think it will, unless it's uber hot outside and you're going up a hill while towing a trailer) and then guage your fueling needs.

A buddy of mine out here got the 94 octane upsolute program (Cypher2k on vwvortex) during the summer. I recall him saying not to waste my money on it so I didn't. Plus, I didn't want to have to make a special drive to the gas station, when the only time I'd want the benefits of the '94 is on the track (or perhaps the odd on-ramp).

Sorry, am I rambling? :P

If anything, I'd get a dyno run done with an wideband A/F done, and pay $150 to Upsolute to get a custom program burned onto my flash. I'd do it with 91 octane program. I know I'd gain a few hp, which is probably about the same that you'd get by running a generic 94 octane program. But at least I could keep running on standard premium fuel!

[Kor]

Re: 94 Octane in second location.

We tried the A/F dyno for a custom program with Peter's car, and I think the results were not all that incredible, but I can't remember. Basically I don't know how to read an A/F graph very well.

I read on some tuning pages that the "stick in tailpipe" method of reading the A/F is not good enough, that you need a pre-cat measurement for it to be valid for tuning purposes. Maybe thats why. I am pretty sure when we dyno'ed it was being measured at the tailpipe (somehow).

Just to be the devil's advocate here:

I agree with you that if your engine timing is not being retarded by the ECU while using 91 octane then adding more octane is a waste of money. But how can you tell that this is not the case without some kind of measurement? I know that if you have just enough octane to eliminate knock then your ECU is probably adapting timings and you are not operating at maximum efficiency. There would be no way to tell if your ECU was adapting engine timings (I don't think). Still, in all practicality it probably does not make a difference for you and I.

If you read the Autospeed articles about negative boost and their manual boost control system (very good articles) they actually manage to induce knock due to increased air flow in a test car. There are some people on AudiWorld and Vortex who claim to have measurably increased the air density. This is why there is a MAF sensor right? So that the ecu can determine the density? Their readings were taken from the MAF and show higher air density.

By the way, I don't think that higher octane cleans carbon buildup, but I did read that it may prevent it from accumulating as fast (without considering the additives).

[Flanders]

Re: 94 Octane in second location.

hmm.
yeah I read that negative boost article -- good read, eh? I'd love to do that with my car, but sadly just don't have the time.

and yeah, you gotta do an a/f with a bung before the cat. This is most accurate, and definitely required for upsolute to optimize the programming. I'm going to get a bung put into my dp when i hit the shop next, for this reason alone! I want a custom program!

I've seen some vag-com graphs of a guy who datalogged his engine's (vwvortex) timing with 87, 89 and 91 octane and you could see exactly where the ecu was pulling timing. This would be a great experiment, but do it with 89, 91, 92, 94 (or whatever). You'd be able to see where your ecu doesn't adapt the timing anymore -- and find out if using 94 is advantageous or not. I did a quick search on vortex but cna't find it. Damn. it was a good post too.

And I'm wondering -- if you've got some detonation from the lower octane gas, this could potentially leave some carbon build-up. So by running the "correct" octane, maybe there isn't any carbon build up because there's no (or substantially less) knocking. (correct my logic if it's wrong )

[R_Ethug]

Re: 94 Octane in second location.

well i dunno even my stock ECU seems to really like the 94 octane.. like i use pretty much 91 well 75% of the time and oh every 2 weeks i get a completely full tank of the 94 and i drive nice for a few KM then floor it and I swear the butt dyno agrees but could be the ricer in me saying its faster

[Kor]

Re: 94 Octane in second location.

The nicer feeling of the Husky gas might have to do with other additives... although the public likes to think its all the same, each company does have their own additive package that is unique.

You're probably right about the carbon build-up, as I said I do not know much about the phenomenon.