FUEL OCTANE FOR THE SS .. - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

1JEWLDSSRS · 07-20-2011, 06:00 PM

Well guys and gals, did a little experiment with the premium fuels you can put in your SS Camaros. 2 weeks ago I filled up with Sunoco 91 octane to see if it made any difference in the performance of the car and it did. I noticed the car loosing some of it's pep after about a half tank was run through it, ran it way down and filled back up with Sunoco 93 which is what I always use anyway, ran 2 tank fulls through it and the performance did NOT pick back up like it was, seemed real sluggish still from the 91 so I did the fuse pull last night before I went to bed, put them back in this morning and going to work this morning and after work this afternoon I had my screamer back. Car runs like a scalded ape again, love it. I didn't think 2 points on the octane scale would make a difference, but it did in my case. The owners manual says premium fuel, so I guess that means 93, not 91.Have fun ..Enjoy the ride..

Silver ice SS · 07-20-2011, 06:07 PM

Wow... I didnt know that 91 octane could make it revert to the low octane table. (thats what its called right?)

jordan 572 · 07-20-2011, 06:10 PM

1JEWLDSSRS · 07-20-2011, 06:13 PM

Quote:

Originally Posted by Silver ice SS

Wow... I didnt know that 91 octane could make it revert to the low octane table. (thats what its called right?)

I wouldn't have thought so either, but seems as though it did. I'll never do that again..And no, it's not BS..

Eric Baker · 07-20-2011, 07:29 PM

It all depends how old the gas in the storage tank at the station was too. The longer it sits, the more octane it loses, as well as losing some volatility.

1JEWLDSSRS · 07-20-2011, 08:45 PM

I gas up at a busy station, it is right off of the interstate and is almost always getting new fuel.So I know it doesn't sit too long..

NavyDood · 07-20-2011, 09:30 PM

I'm gonna say outside temps and humidity had a bigger play in this than the octane. especially since you are in FL.

Rencor · 07-20-2011, 09:37 PM

@1JEWLDSSRS - what fuse to do you pull? Where is it located? Does that reset something? I am a virgin camaro owner and am intrigued....

Inspector 17 · 07-20-2011, 09:40 PM

Quote:

Originally Posted by Rencor

@1JEWLDSSRS - what fuse to do you pull? Where is it located? Does that reset something? I am a virgin camaro owner and am intrigued....

Read here.

CamaroKid300 · 07-20-2011, 11:56 PM

It could have all been in your mind.

1JEWLDSSRS · 07-21-2011, 07:03 AM

Quote:

Originally Posted by NavyDood

I'm gonna say outside temps and humidity had a bigger play in this than the octane. especially since you are in FL.

The temps and the humidity have been the same down here for the last 3 weeks, low to mid 90's and 40-60% humidity, every day, I am a weather watcher as I go fishing all the time and this play a factor in how the fish are going to bite..

1JEWLDSSRS · 07-21-2011, 07:05 AM

Quote:

Originally Posted by CamaroKid300

It could have all been in your mind.

I don't think so, but thanks..I am not new to the muscle car world, used to have 2 old school cars which were effected the same way by fuel octane, 1969 Camaro w/ 327, and a 1972 Dodge Challenger 340 4bbl..

TheHorse13 · 07-21-2011, 07:24 AM

Well my dealer dumped a full tank of 87 in my car upon delivery

. The salesman had no idea about the octane tables in the car so I ran that entire tank of regular, filled up with 93 and ran that down to 1/4 tank then did the fuse pull and went 2 miles to the gas station and filled up with 93 octane again.

Does this work? You bet your a$$. Once I did the fuse pull the tires started to spin at around 3k rpm.

I have since pointed my salesguy to this site so that other new owners don't go through this pain.

What I still don't know is if the octane table reset issue has been fixed in the new cars. Mine was made in June 2011 so I haven't been able to find out if the octane table will automagically flip after a while. Does anyone know the status of this?

n116ebo · 07-21-2011, 08:49 AM

My 2ss is stock (a CAI Inc) and the stations here in west texas mostly have 91 octane. I know of one station that says 92 octane. We went into new mexico and the super said 90 octane, had no choice needed fuel. I envy you guys who can find 93 octane on a regular basis. Was considering a jannetty tune some day and have serious questions concerning asking for a 91 or 93 tune. Just thinking-slowly-slowly

07-20-2011, 06:00 PM	#1
1JEWLDSSRS Drives: 2011 SS-RS Join Date: May 2011 Location: FLORIDA Posts: 13,826	FUEL OCTANE FOR THE SS .. Well guys and gals, did a little experiment with the premium fuels you can put in your SS Camaros. 2 weeks ago I filled up with Sunoco 91 octane to see if it made any difference in the performance of the car and it did. I noticed the car loosing some of it's pep after about a half tank was run through it, ran it way down and filled back up with Sunoco 93 which is what I always use anyway, ran 2 tank fulls through it and the performance did NOT pick back up like it was, seemed real sluggish still from the 91 so I did the fuse pull last night before I went to bed, put them back in this morning and going to work this morning and after work this afternoon I had my screamer back. Car runs like a scalded ape again, love it. I didn't think 2 points on the octane scale would make a difference, but it did in my case. The owners manual says premium fuel, so I guess that means 93, not 91.Have fun ..Enjoy the ride..

07-20-2011, 11:56 PM	#10
CamaroKid300 ace5.org Drives: 2017 ZL1 M6 Join Date: Apr 2010 Location: Atlanta, GA Posts: 6,143 View My Garage	It could have all been in your mind. __________________ Stock...For Now.

07-21-2011, 07:24 AM	#13
TheHorse13 Drives: 2011 Black SS M6 Join Date: Oct 2010 Location: Harpers Ferry, WV Posts: 1,116	Well my dealer dumped a full tank of 87 in my car upon delivery. The salesman had no idea about the octane tables in the car so I ran that entire tank of regular, filled up with 93 and ran that down to 1/4 tank then did the fuse pull and went 2 miles to the gas station and filled up with 93 octane again. Does this work? You bet your a$$. Once I did the fuse pull the tires started to spin at around 3k rpm. I have since pointed my salesguy to this site so that other new owners don't go through this pain. What I still don't know is if the octane table reset issue has been fixed in the new cars. Mine was made in June 2011 so I haven't been able to find out if the octane table will automagically flip after a while. Does anyone know the status of this?

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07-20-2011, 06:07 PM	#2
Silver ice SS Drives: Silver ice Metallic 2SS/RS Join Date: Jan 2010 Location: Philadelphia Posts: 333	Wow... I didnt know that 91 octane could make it revert to the low octane table. (thats what its called right?)

07-20-2011, 06:10 PM	#3
jordan 572 Drives: none Join Date: Jul 2008 Location: MN Posts: 1,720 View My Garage

07-20-2011, 07:29 PM	#5
Eric Baker Drives: Black/Black 2SS/RS 6M Join Date: Mar 2010 Location: Boston MA Posts: 987 View My Garage	It all depends how old the gas in the storage tank at the station was too. The longer it sits, the more octane it loses, as well as losing some volatility.

07-20-2011, 08:45 PM	#6
1JEWLDSSRS Drives: 2011 SS-RS Join Date: May 2011 Location: FLORIDA Posts: 13,826	I gas up at a busy station, it is right off of the interstate and is almost always getting new fuel.So I know it doesn't sit too long..

07-20-2011, 09:30 PM	#7
NavyDood Retired Navy Drives: 2010 2SS/RS Join Date: Mar 2011 Location: NW of DFW Posts: 915	I'm gonna say outside temps and humidity had a bigger play in this than the octane. especially since you are in FL.

07-20-2011, 09:37 PM	#8
Rencor Drives: 2011 Camaro 2SS RS Join Date: Jul 2011 Location: Jupiter, FL Posts: 480	@1JEWLDSSRS - what fuse to do you pull? Where is it located? Does that reset something? I am a virgin camaro owner and am intrigued....

07-21-2011, 08:49 AM	#14
n116ebo n116 Drives: 2010 2SS YELLOW TRANSFORMER AUTO Join Date: Mar 2010 Location: SAN ANGELO TX Posts: 632 View My Garage	My 2ss is stock (a CAI Inc) and the stations here in west texas mostly have 91 octane. I know of one station that says 92 octane. We went into new mexico and the super said 90 octane, had no choice needed fuel. I envy you guys who can find 93 octane on a regular basis. Was considering a jannetty tune some day and have serious questions concerning asking for a 91 or 93 tune. Just thinking-slowly-slowly