Octane Requirements for 2017 ZL1

THell · 11-21-2016, 04:13 PM

Anyone know if the 2017 ZL1 will run on 91 Octane? Live in Denver and not sure if 93 Octane is available. 91 Octane is highest I have seen. I have not done an extensive search, hoping someone can save me the time. Expecting
delivery of a white 2017 ZL1 in 2 weeks.

Glen e · 11-21-2016, 04:15 PM

Of course it will, GM would have a helluva warranty problem if someone had a problem running 91 when that's all that was available. There's very little difference between 91 and 93, not enough to matter unless you're racing in a professional situation.

sdmcss · 11-21-2016, 04:34 PM

Same in Kansas. All the car guys know that there are 3 stations that have 93 otherwise its 91.

I am sure the "Z" will be fine with a diet of 91 Octane... Although I will try to keep a couple gallons of 93 handy

*DGthe3* · 11-21-2016, 04:56 PM

Quote:

Originally Posted by THell

Anyone know if the 2017 ZL1 will run on 91 Octane? Live in Denver and not sure if 93 Octane is available. 91 Octane is highest I have seen. I have not done an extensive search, hoping someone can save me the time. Expecting
delivery of a white 2017 ZL1 in 2 weeks.

You're in Denver ... you don't need as high an octane as those living at sea level. Lower air density at high altitude means that when the air charge gets compressed, it doesn't get as hot. Since its not as hot, its less likely to pre-ignite. And because thats all a higher octane fuel does (resist pre-ignition), a lower octane fuel can be used without any issue.

Besides, even if you were at (or near) sea level, 91 should still be fine. Thats all a lot of places have for premium and GM (as well as every other manufacturer) is well aware of it and build their engines accordingly.

USP45 · 11-21-2016, 05:45 PM

Torco.... Z06 guys running 91 swear by it. Less knock count and less timing being pulled on dyno.

tones2SS · 11-25-2016, 11:16 AM

I'm going to "assume" you need 'at least' 91 octane, but running 93 octane will not hurt. I run 93 octane in my Roush Stage 3, which is tuned for 91 octane right out of Roush's facility and it runs absolutely flawless. Actually, on cold days I can hear the supercharger whine slightly with the stock airbox and big 82mm pulley. Impressive.
Also, the 93 octane will bump up HP and TQ a bit as well, if tuned for 91 octane.

17CamaroZL1 · 11-25-2016, 01:02 PM

Quote:

Originally Posted by tones2SS

Also, the 93 octane will bump up HP and TQ a bit as well, if tuned for 91 octane.

Actually that's exactly the opposite. 93 octane will only give you better performance if you are tuned for it. The higher octane allows you to advance the timing a little more, therefore bumping power a tad. Being tuned for 91 and using 93, will most likely not change anything, and if it did, it would decrease performance.

txferrari · 11-25-2016, 10:58 PM

Whatever you do, don't cheap out one time and put anything lower than 91. I did it 2 times in my Z06 and had to spend $1500 for new cats. I had hella engine knock. I put in 2 tanks of 89 cus I'm an idiot. I had no idea the car was that phinicky.

17CamaroZL1 · 11-25-2016, 11:54 PM

Ouch!! Hate learning things the hard way!

Gen_Nick3.8 · 11-26-2016, 02:28 AM

Quote:

Originally Posted by txferrari

Whatever you do, don't cheap out one time and put anything lower than 91. I did it 2 times in my Z06 and had to spend $1500 for new cats. I had hella engine knock. I put in 2 tanks of 89 cus I'm an idiot. I had no idea the car was that phinicky.

What kinda car owner are you??? Why would you ever put anything under 91 in such a high performance car

*Mr. Wyndham* · 11-26-2016, 11:13 AM

Quote:

Originally Posted by Gen_Nick3.8

What kinda car owner are you??? Why would you ever put anything under 91 in such a high performance car

People make mistakes.

I almost put diesel in my 2012 ZL1 the second time I was at a gas station with it. An attendant inside the store came running out before I stuck it in the car....

17CamaroZL1 · 11-26-2016, 11:31 AM

Quote:

Originally Posted by Mr. Wyndham

People make mistakes.

I almost put diesel in my 2012 ZL1 the second time I was at a gas station with it. An attendant inside the store came running out before I stuck it in the car....

Yeah. I had one save me from doing the same thing to my turbo Ford Probe years ago. She simply turned the pump off as soon as I pulled the trigger and came over the speaker telling me why. I was so glad she did!

*Mr. Wyndham* · 11-26-2016, 11:37 AM

Quote:

Originally Posted by 17CamaroZL1

Yeah. I had one save me from doing the same thing to my turbo Ford Probe years ago. She simply turned the pump off as soon as I pulled the trigger and came over the speaker telling me why. I was so glad she did!

Needless to say.........that never happened again.

17CamaroZL1 · 11-26-2016, 11:55 AM

Quote:

Originally Posted by Mr. Wyndham

Needless to say.........that never happened again.

Same here. LOL!

11-21-2016, 04:13 PM	#1
THell Drives: 2017 zl1 Join Date: Aug 2016 Location: Denver Posts: 8	Octane Requirements for 2017 ZL1 Anyone know if the 2017 ZL1 will run on 91 Octane? Live in Denver and not sure if 93 Octane is available. 91 Octane is highest I have seen. I have not done an extensive search, hoping someone can save me the time. Expecting delivery of a white 2017 ZL1 in 2 weeks.

11-21-2016, 04:15 PM	#2
Glen e Retired from Car mfrs.... Drives: 2LT RS/HR-V Join Date: May 2013 Location: /Fort Lauderdale Posts: 10,044	Of course it will, GM would have a helluva warranty problem if someone had a problem running 91 when that's all that was available. There's very little difference between 91 and 93, not enough to matter unless you're racing in a professional situation. __________________ Glen CLICK HERE for detailing a new car: detailing for non detailers CLICK HERE for how to rinseless CLICK HERE for EASY wheel sealant

11-25-2016, 11:16 AM	#6
tones2SS Drives: '13 Roush S3 '16 Ram Sport 4X4 Join Date: Apr 2009 Location: Massachusetts Posts: 3,096	I'm going to "assume" you need 'at least' 91 octane, but running 93 octane will not hurt. I run 93 octane in my Roush Stage 3, which is tuned for 91 octane right out of Roush's facility and it runs absolutely flawless. Actually, on cold days I can hear the supercharger whine slightly with the stock airbox and big 82mm pulley. Impressive. Also, the 93 octane will bump up HP and TQ a bit as well, if tuned for 91 octane. __________________

11-25-2016, 10:58 PM	#8
txferrari Drives: 2016 Z06/7. Join Date: Aug 2014 Location: Katy Posts: 309	Whatever you do, don't cheap out one time and put anything lower than 91. I did it 2 times in my Z06 and had to spend $1500 for new cats. I had hella engine knock. I put in 2 tanks of 89 cus I'm an idiot. I had no idea the car was that phinicky. __________________ There's only 2 people I trust. One of them is me, the others not you.

11-25-2016, 11:54 PM	#9
17CamaroZL1 Life's Short, Live Fast! Drives: 2017 Hyper Blue A10 ZL1 Join Date: Nov 2016 Location: London, KY Posts: 2,017	Ouch!! Hate learning things the hard way! __________________ Life's Short, Live Fast! Bone Stock https://youtu.be/rTUv2p4T7OA 10.94 at 128 mph, 11.13 at 127mph 870 DA, https://youtu.be/e_X_LcpFp50 11.19 at 127mph 1100 DA Full exhaust, lower pulley, E35 -10.36 at 133 mph 690 DA straight from the street with a slight spin at launch. TZQPHG '17 ZL1 HBM\|A10\|Nav\|PDR\|CFW Hood\|ZL1 Mats 12/26/2016 Ordered! 2/8/2017 Built!! 3/2/2017 Brought Home!!!

11-21-2016, 04:34 PM	#3
sdmcss Drives: 2018 Camaro 2SS 1LE, 1985 MCSS Join Date: Dec 2014 Location: Kansas Posts: 266 View My Garage	Same in Kansas. All the car guys know that there are 3 stations that have 93 otherwise its 91. I am sure the "Z" will be fine with a diet of 91 Octane... Although I will try to keep a couple gallons of 93 handy

11-21-2016, 05:45 PM	#5
USP45 Drives: 2017 ZL1 A10 Join Date: Aug 2016 Location: McKinney TX Posts: 334	Torco.... Z06 guys running 91 swear by it. Less knock count and less timing being pulled on dyno.

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