[GoneIn4Secs]

i just called this shell station,

the guy said their v power 91 octane is better than 94 octane because they dont have any ethanol?


is this true?

can someone rank which gas rating/ gas stations (in gta ontario area) are best?? particularily for the m2?

[GoneIn4Secs]

currently ive been putting in 93 octane from Mobil.

am i getting swindled? should i be using something else?

[gtaM2]

its true 94 petro has ethanol in it, it even says on their website if you dig, i was surprised by this as the pump does not warn about having ethanol in it

i think any 91 without ethanol is the way to go, Shell Vpower and Ultramar is what i am using

[alscks0414]

If yours is flashed to 93 octane higher, I would recommend Petro 94.
If stock, 91 V power shell will just do fine.

[twboy1999]

I think it says 93+ on the gas door

[F87_LCI]

I'm running stg 2 93 OTS map from PTF and use only Petro 94. No issues. You do have to make sure that it is 94 in the pump...don't just assume a yellow paddle/button means 94...I almost made that mistake at one station, but was clever enough to ask the attendant, and he said it was in fact only 91. So moved on to another station. Now have it nailed down to only 2 stations that I use where I know it is 94.

[alscks0414]

Originally Posted by twboy1999

I think it says 93+ on the gas door

Recommended is 93 AKI and minimum is 91

[heavyD^2]

Shell 91 (no ethanol) is better gasoline than any of the nationwide 94's which all use ethanol to achieve their octane level. There's a reason a lot of the GTR owners in Vancouver drive to Washington to fill their cars with US Chevron 92 (no ethanol) over Canadian Chevron 94. The only time our 94 is better is if you get the car pro-tuned for that gasoline.

[PLF69]

Originally Posted by heavyD^2

The only time our 94 is better is if you get the car pro-tuned for that gasoline.

I am with you on this and my experience tuning my N54 135i reflects this also.


I did somes testing at the strip with 94 vs 91 running MHD OTS 91 map and the results were mostly the same.. What I have not tested much is running the 93 Map with 94.

Another test I did was run Boostane with 100octane mix and the 95 Map ran a lot better than the 91 map. My guess at explaining this is the 91 map seems to run the most boost possible that creates much heat with the stock turbo and ends up having the intercooler struggle. The 95oct map seems to run less boost and more timing wich helps a little bit iat.

[fullstack]

Originally Posted by heavyD^2

Shell 91 (no ethanol) is better gasoline than any of the nationwide 94's which all use ethanol to achieve their octane level. There's a reason a lot of the GTR owners in Vancouver drive to Washington to fill their cars with US Chevron 92 (no ethanol) over Canadian Chevron 94. The only time our 94 is better is if you get the car pro-tuned for that gasoline.

Chevron 94 here in Vancouver states it contains no ethanol right on the pump.

[heavyD^2]

Originally Posted by 3rdPedalAddict

Chevron 94 here in Vancouver states it contains no ethanol right on the pump.

Maybe they have changed their formula. I have never heard that it was any good as you can google Chevron 94 Vancouver and you will see GTR forum talk, heck even one here although a bit dated but the same findings;

https://www.e90post.com/forums/showthread.php?t=860059

Regardless our gasoline is not as good as US gasoline in general and it's why a lot of canned tunes from the US don't run as well on Canadian vehicles. Cobb tuning started recommending Canadians to run their 91 ACN California maps with STI's running their maps even if you have 94 Canadian gasoline available and I can verify a lot of knock on Husky 94 with Cobb 91 regular maps until I got a pro-tune then I was good to go.

[F87_LCI]

Originally Posted by heavyD^2

Regardless our gasoline is not as good as US gasoline in general ...

I was reading quite a bit on the subject before I put the tune on my car, and from what I was reading it was more of an East v. West thing than a North v. South thing...that being that the Western Gas is not as "good" as the gas in the East - I assume this means east of Manitoba? No one ever really defines where the "line" is...but there is a lot of info saying that for sure California gas is crap - maybe this applies to BC as well?

Was thinking I should be putting some Boostane in as well, but doesn't that create an unwanted orange film on the engine parts? Can't remember if it was Boostane or another Octane Booster...

[GoneIn4Secs]

So is anyone able to get vpower higher than 91?

[alscks0414]

Originally Posted by GoneIn4Secs

So is anyone able to get vpower higher than 91?

No not available.

[kivyee]

Originally Posted by heavyD^2

Regardless our gasoline is not as good as US gasoline in general and it's why a lot of canned tunes from the US don't run as well on Canadian vehicles. Cobb tuning started recommending Canadians to run their 91 ACN California maps with STI's running their maps even if you have 94 Canadian gasoline available and I can verify a lot of knock on Husky 94 with Cobb 91 regular maps until I got a pro-tune then I was good to go.

I don't think it's that we our gasoline isn't as "good", but more that the us ots maps are based on e10 fuel in general. I can't comment on consistency of the gas, but if we had bad gas all the stock cars wouldn't be running probably. Typically from what I've read the issues usually start after the tunes and generally because someone is using an ots tune. Gotta match the tune to the fuel. I have a feeling that if people having issues with Chevron 94 would increase their ethanol content w e85 it would stop the pinging. Of course at that point the octane will also be higher

[mr_lab_rat]

I had a supercharged e46 and it was quite sensitive to gas. I had better luck with Shell 91 than Chevron 94 (less pinging).

[Ceridan]

Not very scientific I know, but just based on feel my M2 seems to prefer the Chevron 94 we have here on Vancouver Island to Shell V Power 91. Just seems smoother and more responsive.

Very subjective I know, but with only 2 cents per litre price difference, and a Chevron station across the street from my condo, no reason not to use it.

[GoneIn4Secs]

Originally Posted by Ceridan

Not very scientific I know, but just based on feel my M2 seems to prefer the Chevron 94 we have here on Vancouver Island to Shell V Power 91. Just seems smoother and more responsive.

Very subjective I know, but with only 2 cents per litre price difference, and a Chevron station across the street from my condo, no reason not to use it.

but isnt it true that the ethanol content in the gas will cause the corrosion on the engine surface over time? shell 91 has no ethanol content

[Ceridan]

Originally Posted by GoneIn4Secs

but isnt it true that the ethanol content in the gas will cause the corrosion on the engine surface over time? shell 91 has no ethanol content

Chevron 94 also does not contain any ethanol.

[DB88]

Reviving an old thread. I'm just about to install my FMIC and charge pipes. Already have Fabspeed DP. Im going to be switching to Stage 2 BM3. Anyone have any input on our gas in BC. I want to run the 93 Octane map... But is the Chevron 94 good enough. Or should a guy run the 91ACN map with Shell 91..

[GoneIn4Secs]

Originally Posted by DB88

Reviving an old thread. I'm just about to install my FMIC and charge pipes. Already have Fabspeed DP. Im going to be switching to Stage 2 BM3. Anyone have any input on our gas in BC. I want to run the 93 Octane map... But is the Chevron 94 good enough. Or should a guy run the 91ACN map with Shell 91..

I would surmise 94 for performance vs 91 vpower for long term reliability

But im no expert

[shazzy]

Petro 94 ftw! Lol