06-02-2016, 10:22 PM | #1 |
Drives: 2013 ZL1 Convertible A6 BRM Join Date: Feb 2015
Location: Dayton Ohio Area
Posts: 500
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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.
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2013 ZL1 CONVERTIBLE BRM A6
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06-02-2016, 10:24 PM | #2 |
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Drives: 13 ZL1#182, 85 CJ7, 16 Silverado Join Date: Nov 2011
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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?
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06-02-2016, 10:27 PM | #3 |
Drives: 2013 ZL1 Convertible A6 BRM Join Date: Feb 2015
Location: Dayton Ohio Area
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Sure, it is available. But I believe many stations pass off 87 as 93.
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2013 ZL1 CONVERTIBLE BRM A6
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06-02-2016, 10:29 PM | #4 |
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You could start monitoring your kr and see how it reacts and try different stations.
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06-02-2016, 11:12 PM | #5 |
Drives: 2013 Triple Black ZL1 Vert M6 ECF Join Date: Mar 2011
Location: Trenton, Michigan
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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 |
Drives: 2013 Triple Black ZL1 Vert M6 ECF Join Date: Mar 2011
Location: Trenton, Michigan
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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/ |
06-02-2016, 11:49 PM | #7 | |
Drives: 2014 Red Hot ZL1 Join Date: Jan 2010
Location: Arizona
Posts: 147
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Quote:
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2002 Victory Red Trans Am WS6 2000 Lt Pewter Metallic Silverado Z71 1996 Metallic Gray Ford Taurus GL Last edited by WSSICK; 06-03-2016 at 12:35 AM. |
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06-03-2016, 12:42 AM | #8 | |
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Quote:
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06-03-2016, 12:50 AM | #9 |
Drives: 2014 Red Hot ZL1 Join Date: Jan 2010
Location: Arizona
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It is unleaded.
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06-03-2016, 01:11 AM | #10 |
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Drives: 13 ZL1#182, 85 CJ7, 16 Silverado Join Date: Nov 2011
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That's cool then, you could mix it. I don't think anyting over 95 will help with the stock tune.
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06-03-2016, 01:07 PM | #11 |
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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.
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06-03-2016, 01:33 PM | #12 |
Go fast, please.
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06-03-2016, 02:23 PM | #13 |
Drives: 2016 Corvette Z06 Blade Silver Join Date: Jun 2009
Location: Florida
Posts: 822
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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.
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06-03-2016, 07:34 PM | #14 |
Drives: 2015 ZL1 Join Date: May 2015
Location: wisconsin
Posts: 140
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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.. |
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