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      11-26-2016, 09:25 AM   #1
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MHD and Ontario Gas?

I have recently switched to the MHD Tune. Curious about Gas as the tune offers different pump fuel options. I have always used Shell 91 but wondering what other Local MHD users are using and what tune/fuel option they are running? Is Shell 91 the best option for us on pump?

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      11-29-2016, 04:05 PM   #2
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I use Petro 94 but I don't know if it's really any better than Shell. I would say start with the 91 octane tune and log to see if your car is pulling timing. If so, go down to the 91 ACN/CAD tune.
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      12-01-2016, 07:02 AM   #3
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Petro 94, although ive heard husky94 is good as well.

On the jb4 it was clear how much cleaner my logs would be on 94 vs 91.

I cant say shell is the best option, considering its lack of octane. If your goal is to make power, no reason to settle for less.

I used 94 on the 91 map and it looked good, ive since flashed the 93oct map, MHD said it should be fine, logs will tell.

The best thing to really do is get a custom tune, that way it optimizes whichever fuel youre running. I would want the most octane as i can get though, coming from jb4 and meth, to mhd, im hoping a custom tune will fill that void of lost power from meth.
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      08-19-2017, 03:16 PM   #4
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Quote:
Originally Posted by Dhillon92 View Post
Petro 94, although ive heard husky94 is good as well.

On the jb4 it was clear how much cleaner my logs would be on 94 vs 91.

I cant say shell is the best option, considering its lack of octane. If your goal is to make power, no reason to settle for less.

I used 94 on the 91 map and it looked good, ive since flashed the 93oct map, MHD said it should be fine, logs will tell.

The best thing to really do is get a custom tune, that way it optimizes whichever fuel youre running. I would want the most octane as i can get though, coming from jb4 and meth, to mhd, im hoping a custom tune will fill that void of lost power from meth.
How did it turn out for you to use the 91 map on petro94?
If I am unable to access 94 octane is it best for me to just stick to the ACN 91 map?
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      01-04-2020, 03:28 AM   #5
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Bump wondering how it turned out using 91 from Petro or esso on what map?
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      01-04-2020, 05:19 PM   #6
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Husky94>petro94>shell91

We just started getting chevron 94, I havenít had a chance to test it yet.

I donít know about the esso 93 you guys get in Ontario.

Either way, your better off running a 91 map on 94 Canadian gas. You guys at sea level might have a better shot at running a little more.

Last edited by fredcase; 01-04-2020 at 05:24 PM..
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      01-05-2020, 01:07 AM   #7
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So il run the CAD91 map? Or the OCT 91 map?
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      01-05-2020, 01:22 AM   #8
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Quote:
Originally Posted by Kbudz94 View Post
So il run the CAD91 map? Or the OCT 91 map?
I think the acn maps are the most conservative. Regular 91 maps slightly more aggressive.

You may want to start low, monitor your timing pulls, and work up if possible.

I'm pretty sure the only thing the octane maps change is timing.
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      01-09-2020, 05:28 PM   #9
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Use petro 94 for the CDN94 maps, anything else *may* cause motor pinging. Better safe than sorry for a few extra hp.
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      01-10-2020, 05:58 PM   #10
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I use petro 94 and the ACN91/CAN94 map cause I was always told that our gas is so shit that our 94 is worse than US 91, which is why it's written like that
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      01-15-2020, 06:36 PM   #11
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Quote:
Originally Posted by Allenssmart View Post
I use petro 94 and the ACN91/CAN94 map cause I was always told that our gas is so shit that our 94 is worse than US 91, which is why it's written like that
^what he said. Only use Petro 94, and even that isn't great compared to US gas
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      01-16-2020, 03:11 PM   #12
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Doesnt canada and america both use RON tho?
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      01-16-2020, 03:32 PM   #13
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Quote:
Originally Posted by Allenssmart View Post
I use petro 94 and the ACN91/CAN94 map cause I was always told that our gas is so shit that our 94 is worse than US 91, which is why it's written like that
Yes me to I agree but surprisingly I've had great success using Petro 94 with the 93 Octane rated tune on stage2+. I've logged a few times to make sure and I get zero timing corrections nor knocking or anything.

Last edited by TheMidnightNarwhal; 01-16-2020 at 03:58 PM..
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      01-23-2020, 12:37 PM   #14
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Sorry to revive this thread, I've got a question, I just bought my 2008 335i and just learned from this thread that there is 94 octane available here in Canada. Is it safe to put 94 oct on stock hpfp/lpfp? keep in mind I don't have any piggyback tuners right now that can log info. Thanks for your reply.
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      01-23-2020, 12:47 PM   #15
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Quote:
Originally Posted by tomasp001 View Post
Sorry to revive this thread, I've got a question, I just bought my 2008 335i and just learned from this thread that there is 94 octane available here in Canada. Is it safe to put 94 oct on stock hpfp/lpfp? keep in mind I don't have any piggyback tuners right now that can log info. Thanks for your reply.
I don't see the problem with using higher octane than required. It's just gonna be a waste of money.
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      01-23-2020, 03:26 PM   #16
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Quote:
Originally Posted by TheMidnightNarwhal View Post
I don't see the problem with using higher octane than required. It's just gonna be a waste of money.
So in order to reap the benefits of higher octane i would need a tuner/mods first? Sorry noob here
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      01-23-2020, 07:25 PM   #17
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Quote:
Originally Posted by tomasp001 View Post
So in order to reap the benefits of higher octane i would need a tuner/mods first? Sorry noob here
I'm not 100% if the ECU will like, run better with higher octane since our gas is shit but for sure to make more power you would need a tune for it.

But really 94 octane vs 91 even with tunes I don't think it will provide a huge ammount of power. I run 94 on 93 tune just because I seem to have no timing corrections in my logs.

And idk if placebo but I feel like my pops and bangs are louder on 94.
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      04-28-2020, 05:39 PM   #18
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Quote:
Originally Posted by tomasp001 View Post
Sorry to revive this thread, I've got a question, I just bought my 2008 335i and just learned from this thread that there is 94 octane available here in Canada. Is it safe to put 94 oct on stock hpfp/lpfp? keep in mind I don't have any piggyback tuners right now that can log info. Thanks for your reply.
Running higher octane is better/safer for your engine as opposed to running lower octane. Running higher octane helps reduce carbon build up.


I am currently running MHD 2+ tune, fill shell 91 or petro 94 religiously. Never had any issues; other than misfires from bad cyl # 3 coil pack.

Last edited by Fr35h; 04-28-2020 at 05:44 PM..
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      05-02-2020, 10:01 PM   #19
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Certain esso dont add ethanol to there 91 oct in canada aswell. Just gotta check
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