To those with 93 octane tunes... - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Agent WD-40 · 03-22-2011, 11:11 AM

What do you do when you can only find 91 octane?

OnkelMatze · 03-22-2011, 03:22 PM

don´t do WOT

Dave Coyle · 03-22-2011, 03:23 PM

Drive to another gas station that has 93 and if you don't have enough gas to make the next station, just put in enough to make it to the station with 93 and fill it there.

n116ebo · 03-22-2011, 04:28 PM

Seriously, we have no places selling 93 octane (only 91) where I live in west texas and most if not all have ethanol. Wish I could find some 93.

tman52804 · 03-22-2011, 05:19 PM

I'm running into the same problem. I've requested an additional tune for 91.

Slowhawk · 03-22-2011, 07:58 PM

If the tune is right there should be a low octain table which the car switches to when lower grade gas is used.IE- reading off the KR sensors.

Luvpilot · 03-23-2011, 02:47 AM

NO 93 in AZ

Just a heads up for the those coming for the Fest.

aj2ssrs · 03-23-2011, 07:35 AM

Quote:

Originally Posted by Slowhawk

If the tune is right there should be a low octain table which the car switches to when lower grade gas is used.IE- reading off the KR sensors.

I'm not sure, but I think that when the car is tuned, the high octane tables are also copied to the low octane tables. If you use gas with a lesser octane, I wouldn't drive it like I stole it.

Scott@Bjorn3D · 03-23-2011, 07:52 AM

That is why it should be tuned for 91 octane and not 93. And you could also always ask your tuner not to copy high octane tune to low tables. That would be the smart thing to do. You never know when you may even get crappy 93 gas.

Russell James · 03-23-2011, 07:55 AM

The knock sensors will still do there job. I wouldn't sweat the occasional tank of 91. Maybe swing by an auto parts store and throw in a bottle of octane boost if you still want max performance. But it's not going to damage anything, the knock sensing will just reduce the power a bit if there is some knock.

Agent WD-40 · 03-23-2011, 11:06 AM

I have a 91 and 93 octane tune that I can put on my car. It sounds like I can probably get away with just using the 93 tune if I'm easy on it. I have no idea if my tuner left the low octane table in place or not though.

I'm planning on a road trip so I cannot guarantee I can find 93 everywhere. I'll probably just run the 91 tune for that trip. That seems easier than having a few bottles of octane booster on hand.

JANNETTYRACING · 03-23-2011, 11:11 AM

Quote:

Originally Posted by Agent WD-40

What do you do when you can only find 91 octane?

Nothing to be to concerned about as the Knock sensors will pull necessary timing to protect the engine and performance will be reduced.

I offer tunes for 93,91 and even 87 if needed

Like the guys said if you normally run 93 octane and you are tuned for 93 octane but can only get 91 octane just don't drive it like you stole it and all will be fine.

We carry Torco Accelerator Race gas concnetrate, a few ounces will bump the octane right back up where you need it.

Ted.

Agent WD-40 · 03-23-2011, 11:54 AM

Thanks!

03-22-2011, 11:11 AM	#1
Agent WD-40 Drives: 2010 Camaro SS Join Date: Oct 2010 Location: MI Posts: 601	To those with 93 octane tunes... What do you do when you can only find 91 octane? __________________ L99 - 440 RWHP Livernois 2c Cam & VVT/DOD Delete Roto-Fab Intake Stainless Works 1 7/8" Long Tube Headers Corsa Exhaust

03-22-2011, 03:23 PM	#3
Dave Coyle Drives: 2010 SS , 1970 Z-28, 2002 Avalanche Join Date: Aug 2009 Location: Michigan Posts: 2,524 View My Garage	Drive to another gas station that has 93 and if you don't have enough gas to make the next station, just put in enough to make it to the station with 93 and fill it there. __________________ IF IT'S WORTH HAVING, IT'S WORTH WAITING FOR!!!! (AND IT WAS) 434RWHP/403RWTQ Livernois Motorsports 2C Cam kit Kooks 1 7/8 LT Headers/Hi-Flo Cats/Corsa Exhaust Roto-Fab CAI / Port Intake Precission 2400/2800 Converter/3.73 AAM gears Livernois Motorsports Tune Best time: 11.97 @ 117 MPH

03-22-2011, 05:19 PM	#5
tman52804 Drives: 2010 Chevy Camaro SS/RS Join Date: Jul 2009 Location: Iowa Posts: 169	I'm running into the same problem. I've requested an additional tune for 91. __________________ 2010 2SS/RS 3" MagnaflowComp Series Exhaust Airaid CAI MGW Short throw shifter Kooks LT Headers/Hi flow Cats Vmax TB

03-23-2011, 11:06 AM	#11
Agent WD-40 Drives: 2010 Camaro SS Join Date: Oct 2010 Location: MI Posts: 601	I have a 91 and 93 octane tune that I can put on my car. It sounds like I can probably get away with just using the 93 tune if I'm easy on it. I have no idea if my tuner left the low octane table in place or not though. I'm planning on a road trip so I cannot guarantee I can find 93 everywhere. I'll probably just run the 91 tune for that trip. That seems easier than having a few bottles of octane booster on hand. __________________ L99 - 440 RWHP Livernois 2c Cam & VVT/DOD Delete Roto-Fab Intake Stainless Works 1 7/8" Long Tube Headers Corsa Exhaust

03-23-2011, 11:54 AM	#13
Agent WD-40 Drives: 2010 Camaro SS Join Date: Oct 2010 Location: MI Posts: 601	Thanks! __________________ L99 - 440 RWHP Livernois 2c Cam & VVT/DOD Delete Roto-Fab Intake Stainless Works 1 7/8" Long Tube Headers Corsa Exhaust

03-22-2011, 03:22 PM	#2
OnkelMatze Drives: Camaro 2SS/RS LS3 AirForce Join Date: Mar 2010 Location: Neumünster/Germany Posts: 231 View My Garage	don´t do WOT

03-22-2011, 04:28 PM	#4
n116ebo n116 Drives: 2010 2SS YELLOW TRANSFORMER AUTO Join Date: Mar 2010 Location: SAN ANGELO TX Posts: 633 View My Garage	Seriously, we have no places selling 93 octane (only 91) where I live in west texas and most if not all have ethanol. Wish I could find some 93.

03-22-2011, 07:58 PM	#6
Slowhawk Drives: 1999 Trans Am Join Date: Jul 2009 Location: Bridgewater,Ma Posts: 2,018	If the tune is right there should be a low octain table which the car switches to when lower grade gas is used.IE- reading off the KR sensors.

03-23-2011, 02:47 AM	#7
Luvpilot Drives: GM Join Date: Jun 2009 Location: AZ Posts: 352 View My Garage	NO 93 in AZ Just a heads up for the those coming for the Fest.

03-23-2011, 07:52 AM	#9
Scott@Bjorn3D Drives: Kami, 2013 2SS LS3 Luvin Join Date: Oct 2008 Location: Eufaula, Alabama Posts: 6,427	That is why it should be tuned for 91 octane and not 93. And you could also always ask your tuner not to copy high octane tune to low tables. That would be the smart thing to do. You never know when you may even get crappy 93 gas.

03-23-2011, 07:55 AM	#10
Russell James Drives: '15 SS 1LE, '69 Z28 drag car Join Date: Dec 2009 Location: Mich Posts: 4,482	The knock sensors will still do there job. I wouldn't sweat the occasional tank of 91. Maybe swing by an auto parts store and throw in a bottle of octane boost if you still want max performance. But it's not going to damage anything, the knock sensing will just reduce the power a bit if there is some knock.

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