Straight 87 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

2013ZL1FUN · 06-02-2016, 10:22 PM

Has anyone ran 87 octane gasoline exclusively in their ZL1? It seems that I am constantly doing fuse pulls due to getting stuck with gasoline that is not 93 octane. I am tired of doing fuse pulls. I can tell when I put gasoline in my car that isn't the 93 octane that it is supposed to be. The ECM does in fact pull timing, I can tell.

Sven59 · 06-02-2016, 10:24 PM

I believe the owners manual says it will run on 87 but is not recommended. We only have 91 here. Don't you have higher octane available?

2013ZL1FUN · 06-02-2016, 10:27 PM

Sure, it is available. But I believe many stations pass off 87 as 93.

Sven59 · 06-02-2016, 10:29 PM

You could start monitoring your kr and see how it reacts and try different stations.

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HDRDTD · 06-02-2016, 11:12 PM

From the owner manual.

Required Fuel (ZL1 Only)
If the vehicle has the 6.2L V8 engine
(VIN Code P), use premium
unleaded gasoline with a posted
octane rating of 91 or higher. For
best performance, use premium
unleaded gasoline with a posted
octane rating of 93. You can also
use regular unleaded gasoline rated
at 87 octane or higher, but the
vehicle's acceleration could be
slightly reduced, and a slight audible
knocking noise, commonly referred
to as spark knock, might be heard.
If the octane rating is less than 87, a
heavy knocking noise might be
heard when driving. If this occurs,
use a gasoline rated at 87 octane or
higher as soon as possible.
Otherwise, you could damage the
engine. If heavy knocking is heard
when using gasoline rated at
87 octane or higher, the engine
needs service.

HDRDTD · 06-02-2016, 11:16 PM

For the amount of money we pay for our ZL1's, in my opinion. using anything less than 91 octane top tier gas is just asking for trouble.

91 is 'OK' but if 93 is available, I'd use that.

Also, you can find a list of what they refer to as 'Top Tier' gas can be found here.

http://www.toptiergas.com/retailers/

WSSICK · 06-02-2016, 11:49 PM

Quote:

Originally Posted by Sven59

I believe the owners manual says it will run on 87 but is not recommended. We only have 91 here. Don't you have higher octane available?

Arizona has 87, 89, 91 octane and in some places 100 octane fuel available as well as E85.

Sven59 · 06-03-2016, 12:42 AM

Quote:

Originally Posted by WSSICK

Arizona has 87, 89, 91 octane and in some places 100 octane fuel available as well as E85.

Be careful of the 100 octane or racing fuel, it may contain lead.

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WSSICK · 06-03-2016, 12:50 AM

It is unleaded.

Sven59 · 06-03-2016, 01:11 AM

That's cool then, you could mix it. I don't think anyting over 95 will help with the stock tune.

hawk02 · 06-03-2016, 01:07 PM

Quote:

Originally Posted by 2013ZL1FUN

Sure, it is available. But I believe many stations pass off 87 as 93.

What gas are you using? I put nothing but Shell 93 in my car and haven't run into any problems. I use a station right next to the outer belt that's always busy.

jayno20 · 06-03-2016, 01:33 PM

Quote:

Originally Posted by Sven59

You could start monitoring your kr and see how it reacts and try different stations.

Sent from my SCH-I545 using Tapatalk

I assume there is more kr with lower octane gas, correct? If so, when will that KR show... full throttle or all the time?

BlackinBlack · 06-03-2016, 02:23 PM

Supercharged motor..... run 91 and above only. Heck the ZL1 is the only Camaro model (except maybe the Z28) that has a "PREMIUM ONLY" sticker inside the gas door. Anything less is bad news. If I had to run lower octane I would stay out of the boost till it was gone. WOT on 87 or 89 is asking for broken engine parts. BTW GM could very well void a warranty over it too.

Why would you do this? I have never been to a gas station that did not have at least 91.

fluxzl1 · 06-03-2016, 07:34 PM

get some torco... i have JRE 75 RWHP with headers 96 octane tune,
i had the same set up with 91 and diff is night and day pulls much harder
and runs smoother to.. you could just add enough torco to get you to 93..

06-02-2016, 10:22 PM	#1
2013ZL1FUN Drives: 2013 ZL1 Convertible A6 BRM Join Date: Feb 2015 Location: Dayton Ohio Area Posts: 499	Straight 87 Has anyone ran 87 octane gasoline exclusively in their ZL1? It seems that I am constantly doing fuse pulls due to getting stuck with gasoline that is not 93 octane. I am tired of doing fuse pulls. I can tell when I put gasoline in my car that isn't the 93 octane that it is supposed to be. The ECM does in fact pull timing, I can tell. __________________ 2013 ZL1 CONVERTIBLE BRM A6 OHIO

06-02-2016, 10:24 PM	#2
Sven59 HAMMER PILOT Drives: 13 ZL1#182, 85 CJ7, 16 Silverado Join Date: Nov 2011 Location: Tucson AZ Posts: 4,386	I believe the owners manual says it will run on 87 but is not recommended. We only have 91 here. Don't you have higher octane available? __________________ "DO YOU WANT ME TO PUT THE HAMMER DOWN?"

06-02-2016, 10:27 PM	#3
2013ZL1FUN Drives: 2013 ZL1 Convertible A6 BRM Join Date: Feb 2015 Location: Dayton Ohio Area Posts: 499	Sure, it is available. But I believe many stations pass off 87 as 93. __________________ 2013 ZL1 CONVERTIBLE BRM A6 OHIO

06-02-2016, 10:29 PM	#4
Sven59 HAMMER PILOT Drives: 13 ZL1#182, 85 CJ7, 16 Silverado Join Date: Nov 2011 Location: Tucson AZ Posts: 4,386	You could start monitoring your kr and see how it reacts and try different stations. Sent from my SCH-I545 using Tapatalk __________________ "DO YOU WANT ME TO PUT THE HAMMER DOWN?"

06-03-2016, 12:50 AM	#9
WSSICK Drives: 2014 Red Hot ZL1 Join Date: Jan 2010 Location: Arizona Posts: 147	It is unleaded. __________________ *2014 Red Hot Camaro ZL1* 2002 Victory Red Trans Am WS6 2000 Lt Pewter Metallic Silverado Z71 1996 Metallic Gray Ford Taurus GL

06-02-2016, 11:12 PM	#5
HDRDTD Drives: 2013 Triple Black ZL1 Vert M6 ECF Join Date: Mar 2011 Location: Trenton, Michigan Posts: 7,047	From the owner manual. Required Fuel (ZL1 Only) If the vehicle has the 6.2L V8 engine (VIN Code P), use premium unleaded gasoline with a posted octane rating of 91 or higher. For best performance, use premium unleaded gasoline with a posted octane rating of 93. You can also use regular unleaded gasoline rated at 87 octane or higher, but the vehicle's acceleration could be slightly reduced, and a slight audible knocking noise, commonly referred to as spark knock, might be heard. If the octane rating is less than 87, a heavy knocking noise might be heard when driving. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. Otherwise, you could damage the engine. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.

06-02-2016, 11:16 PM	#6
HDRDTD Drives: 2013 Triple Black ZL1 Vert M6 ECF Join Date: Mar 2011 Location: Trenton, Michigan Posts: 7,047	For the amount of money we pay for our ZL1's, in my opinion. using anything less than 91 octane top tier gas is just asking for trouble. 91 is 'OK' but if 93 is available, I'd use that. Also, you can find a list of what they refer to as 'Top Tier' gas can be found here. http://www.toptiergas.com/retailers/

06-03-2016, 01:11 AM	#10
Sven59 HAMMER PILOT Drives: 13 ZL1#182, 85 CJ7, 16 Silverado Join Date: Nov 2011 Location: Tucson AZ Posts: 4,386	That's cool then, you could mix it. I don't think anyting over 95 will help with the stock tune. __________________ "DO YOU WANT ME TO PUT THE HAMMER DOWN?"

06-03-2016, 02:23 PM	#13
BlackinBlack Drives: 2016 Corvette Z06 Blade Silver Join Date: Jun 2009 Location: Florida Posts: 822	Supercharged motor..... run 91 and above only. Heck the ZL1 is the only Camaro model (except maybe the Z28) that has a "PREMIUM ONLY" sticker inside the gas door. Anything less is bad news. If I had to run lower octane I would stay out of the boost till it was gone. WOT on 87 or 89 is asking for broken engine parts. BTW GM could very well void a warranty over it too. Why would you do this? I have never been to a gas station that did not have at least 91. __________________ 2016 2LZ Z06 Blade Silver 2013 ZL1 BLACK on BLACK <SOLD> Roto-Fab CAI 2010 2SS/RS BLACK on BLACK <SOLD> 3" MBRP 304 Stainless Exhaust Roto-Fab CAI

06-03-2016, 07:34 PM	#14
fluxzl1 Drives: 2015 ZL1 Join Date: May 2015 Location: wisconsin Posts: 139	get some torco... i have JRE 75 RWHP with headers 96 octane tune, i had the same set up with 91 and diff is night and day pulls much harder and runs smoother to.. you could just add enough torco to get you to 93..