Which gas should I use? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Scruffage · 03-13-2011, 03:33 PM

Just found out my favorite gas station that sells gas with no ethanol now can't get 93 octane. The owner told me he could no longer get 93 octane without ethanol now all he has is 91 octane. So should I run the 91 octane with no ethanol or buy elsewhere and get 93 octane but with 10% ethanol?

mikepage0007 · 03-13-2011, 04:12 PM

everyone is pretty much running 93 with eth...just don,t let the car sit for long periods with eth unless you put some stabil in it

Mibadd · 03-13-2011, 04:24 PM

Quote:

Originally Posted by Scruffage

Just found out my favorite gas station that sells gas with no ethanol now can't get 93 octane. The owner told me he could no longer get 93 octane without ethanol now all he has is 91 octane. So should I run the 91 octane with no ethanol or buy elsewhere and get 93 octane but with 10% ethanol?

Try this website for a station that may sell ethanol free gas in your area :

http://pure-gas.org/index.jsp

The Stig · 03-13-2011, 05:51 PM

93 octane for the SS. It is in the owners manual. You can put in 87, or regular, but it will cause spark retardation and you will see a decrease in power.

jsharp · 03-13-2011, 06:04 PM

Run 93... note that the signs say may contain up to 10% ethanol so stick with the better stations although prices may be a little higher I like to believe that they have a little less ethanol to accout for the higher prices. If you dont have ethanol at all gas stations you eventially will and if things keep going south with oil and prices they may push for more ethanol in gas (lets pray they dont)

CC Performance · 03-13-2011, 06:15 PM

Run the most octane you can find but 91 sholud be fine. We run 11.3:1 compression on 91 and your at like 10:47 or 10: 87 from the factory so 91 should be ok. We get 91 with 10% out here, no issues what so ever.

RJNavarrete · 03-13-2011, 06:41 PM

Wait... I think the best I can get around here [Bakersfield, CA] is 91... I'm supposed to be using 93?! :/

CC Performance · 03-13-2011, 06:45 PM

Quote:

Originally Posted by RJNavarrete

Wait... I think the best I can get around here [Bakersfield, CA] is 91... I'm supposed to be using 93?! :/

read what I just posted, your fine

electlatino · 03-13-2011, 06:57 PM

Quote:

Originally Posted by RJNavarrete

Wait... I think the best I can get around here [Bakersfield, CA] is 91... I'm supposed to be using 93?! :/

don't worry about it. california doesn't have 93 octane. there are a few select stations that do 100 octane, but then you have to get the right ratio of 91 and 100 to make 93. too much of a pain in the ass for me. 91 works just fine

TornadoSS · 03-13-2011, 08:04 PM

No one around here sells 93 octane anymore. I'm pretty sure the owners manual states 91+. It runs fine in my SS but it is "tuned" for 91.

Scruffage · 03-13-2011, 08:22 PM

I can get 93 octane ethanol blend at a different gas station but I have been getting 93 octane ethanol free gas. I guess my question is; Which is more important the octane rating or the absence of ethanol?

Scruffage · 03-14-2011, 02:36 PM

Any of the expert tuners what to chime in on this issue?

*mlee* · 03-14-2011, 02:40 PM

Quote:

Originally Posted by Scruffage

Any of the expert tuners what to chime in on this issue?

One of them did... There are a number of states that only carry 91. Arizona is one of them. As long as you are on the stock tune your are fine w/ 91

If you have a custom tune using 93 then you should be using 93...

BAWLZ SS · 03-14-2011, 05:40 PM

so let me get this straight!... gas with ethanol is not as good or what's the issue??? i live in CA and i pump 91 octane. do i need like an octane booster?? will the car run better if i add octane booster to my gas??

03-13-2011, 03:33 PM	#1
Scruffage Drives: 2011 2ss Rs LS3 manual in black Join Date: Jul 2010 Location: KY Posts: 402	Which gas should I use? Just found out my favorite gas station that sells gas with no ethanol now can't get 93 octane. The owner told me he could no longer get 93 octane without ethanol now all he has is 91 octane. So should I run the 91 octane with no ethanol or buy elsewhere and get 93 octane but with 10% ethanol?

03-13-2011, 04:12 PM	#2
mikepage0007 Drives: 2010 camaro Join Date: Aug 2009 Location: port st lucie ,florida Posts: 4,273	everyone is pretty much running 93 with eth...just don,t let the car sit for long periods with eth unless you put some stabil in it __________________

03-13-2011, 05:51 PM	#4
The Stig knows 2 facts about ducks Drives: ...and they're both wrong Join Date: Aug 2009 Location: The HMS Invincible Posts: 25,072 View My Garage	93 octane for the SS. It is in the owners manual. You can put in 87, or regular, but it will cause spark retardation and you will see a decrease in power. __________________

03-13-2011, 06:04 PM	#5
jsharp NOW CAMMED & SUPERCHARGED Drives: 2010 Camaro 2SS/RS Black w/ IOM Join Date: Oct 2008 Location: Ar Posts: 2,336	Run 93... note that the signs say may contain up to 10% ethanol so stick with the better stations although prices may be a little higher I like to believe that they have a little less ethanol to accout for the higher prices. If you dont have ethanol at all gas stations you eventially will and if things keep going south with oil and prices they may push for more ethanol in gas (lets pray they dont) __________________ Livernois Motorsports: Maggie 2300 7psi, Livernois 2C cam/L99 to LS3 Conversion, Ported TB, Rotofab w/adm race scoop, adm trans cooler,Kooks headers no cats, Kooks 3" exhaust. METCO breather. Precision 2400 Vigilante TC. Eibach Lowering Springs & Swaybars. BMR Trailing arms, BMR Rear Cradle Bushings, BMR Toe Rods, BMR Differential bushings. Vossen CV3 20's w/ 305 Mickey Thompson @25psi. Zl1 front bumper. OE Zl1 Hood and matte black insert. 556RWHP/500RWTQ L99

03-13-2011, 06:41 PM	#7
RJNavarrete kingjeezy™ Drives: 2011 SS/RS in Cyber Grey Join Date: Feb 2011 Location: Arvin, CA Posts: 227 View My Garage	Wait... I think the best I can get around here [Bakersfield, CA] is 91... I'm supposed to be using 93?! :/ __________________ 2011 Chevrolet Camaro 2SS/RS LS3 purchased 02.19.2011 Cyber Grey Metallic \| Black Leather \| 6-Speed Manual w/Hurst Shifter

03-13-2011, 06:15 PM	#6
CC Performance Account Suspended Drives: 99 Camaro SS, 79 z28, 70 GTX Join Date: Oct 2009 Location: ST Helens, OR Posts: 1,759	Run the most octane you can find but 91 sholud be fine. We run 11.3:1 compression on 91 and your at like 10:47 or 10: 87 from the factory so 91 should be ok. We get 91 with 10% out here, no issues what so ever.

03-13-2011, 08:04 PM	#10
TornadoSS WICKDSS Drives: 2011 1SS/RS IOM LS3 Join Date: May 2010 Location: Wichita, Kansas Posts: 1,111 View My Garage	No one around here sells 93 octane anymore. I'm pretty sure the owners manual states 91+. It runs fine in my SS but it is "tuned" for 91. __________________ 2011 IOM SS/RS, M6. Look up our all generation Camaro club website at Heartland Camaros Gforce Engineering Drivetrain, ECS 1500 Supercharger, TSP Cam, Alky Controls Meth single nozzle. 91 octane, 698 RWHP 625 rwtq. 4200#+, Tuned by Justin "Justune" Kalwei 11.57 @ 126.8 mph with a crappy 1.80 60'.....still learning to drive....M&H DR's and skinnies on 17" Welds.

03-13-2011, 08:22 PM	#11
Scruffage Drives: 2011 2ss Rs LS3 manual in black Join Date: Jul 2010 Location: KY Posts: 402	I can get 93 octane ethanol blend at a different gas station but I have been getting 93 octane ethanol free gas. I guess my question is; Which is more important the octane rating or the absence of ethanol?

03-14-2011, 02:36 PM	#12
Scruffage Drives: 2011 2ss Rs LS3 manual in black Join Date: Jul 2010 Location: KY Posts: 402	Any of the expert tuners what to chime in on this issue?

03-14-2011, 05:40 PM	#14
BAWLZ SS Drives: '10 Camaro LS3 2SS/RS, 1968 Nova Join Date: Aug 2010 Location: California Posts: 972	so let me get this straight!... gas with ethanol is not as good or what's the issue??? i live in CA and i pump 91 octane. do i need like an octane booster?? will the car run better if i add octane booster to my gas??

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