91 Octane?
Thread Starter
Intermediate
Joined: May 2017
Posts: 49
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From: Tennessee
91 Octane?
I'm gonna have my Z in and around Las Vegas for most of January and from what I understand the highest octane rating for premium that area offers is 91. Is that going to be an issue
for these Z06's? Probably a stupid question, but thought I would ask anyway. I know they have some Rebel stations out there with 100+ octane, would an octane that high actually work well with these
cars? Thanks in advance for your input.
for these Z06's? Probably a stupid question, but thought I would ask anyway. I know they have some Rebel stations out there with 100+ octane, would an octane that high actually work well with these
cars? Thanks in advance for your input.
Racer
Joined: Aug 2019
Posts: 436
Likes: 239
From: Las Vegas
I'm gonna have my Z in and around Las Vegas for most of January and from what I understand the highest octane rating for premium that area offers is 91. Is that going to be an issue
for these Z06's? Probably a stupid question, but thought I would ask anyway. I know they have some Rebel stations out there with 100+ octane, would an octane that high actually work well with these
cars? Thanks in advance for your input.
for these Z06's? Probably a stupid question, but thought I would ask anyway. I know they have some Rebel stations out there with 100+ octane, would an octane that high actually work well with these
cars? Thanks in advance for your input.
I buy a blend of 100 octane and 91 octane.
I try to keep my tank's average octane around 95 or so, so I shoot for a 1 to 1 ratio.
A 1 to 2 ratio is 94 octane; a 1 to 3 ratio is just over 93 octane.
Last edited by KLG; Dec 24, 2020 at 05:53 PM.
Instructor
Joined: Jul 2020
Posts: 189
Likes: 59
From: Las Vegas, NV
I'm gonna have my Z in and around Las Vegas for most of January and from what I understand the highest octane rating for premium that area offers is 91. Is that going to be an issue
for these Z06's? Probably a stupid question, but thought I would ask anyway. I know they have some Rebel stations out there with 100+ octane, would an octane that high actually work well with these
cars? Thanks in advance for your input.
for these Z06's? Probably a stupid question, but thought I would ask anyway. I know they have some Rebel stations out there with 100+ octane, would an octane that high actually work well with these
cars? Thanks in advance for your input.
Matt
There are a couple ARCO/Rebel stations in my area that sell the 100 octane race fuel. It is expensive stuff, at just under $8/gallon. And not all Rebel stations carry it.
I buy a blend of 100 octane and 91 octane.
I try to keep my tank's average octane around 95 or so, so I shoot for a 1 to 1 ratio.
A 1 to 2 ratio is 94 octane; a 1 to 3 ratio is just over 93 octane.
I buy a blend of 100 octane and 91 octane.
I try to keep my tank's average octane around 95 or so, so I shoot for a 1 to 1 ratio.
A 1 to 2 ratio is 94 octane; a 1 to 3 ratio is just over 93 octane.
Matt
Racer
Joined: Aug 2019
Posts: 436
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From: Las Vegas
Safety Car
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I'm gonna have my Z in and around Las Vegas for most of January and from what I understand the highest octane rating for premium that area offers is 91. Is that going to be an issue
for these Z06's? Probably a stupid question, but thought I would ask anyway. I know they have some Rebel stations out there with 100+ octane, would an octane that high actually work well with these
cars? Thanks in advance for your input.
for these Z06's? Probably a stupid question, but thought I would ask anyway. I know they have some Rebel stations out there with 100+ octane, would an octane that high actually work well with these
cars? Thanks in advance for your input.
Instructor
Joined: Jul 2020
Posts: 189
Likes: 59
From: Las Vegas, NV
Filled her up just a few hours ago! Put in 4 gallons of 100 and the rest 91. Seems to be a pretty good mix. Now if only I didn't live in Spring Valley. Oh well. Guess I'll have to drive her 20 minutes one way each time I need to fill up! 
Matt
Matt
Last edited by mattya9; Dec 25, 2020 at 09:04 PM.
Racer
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From: Las Vegas
--KLG--
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Your engines octane requirements go down as your elevation goes up. Generally, if the Premium they sell in your area is 91, then that’s all you need in that area. If you fill up with 91 and then drive to a lower elevation location, then you might need to address it.
Last edited by need-for-speed; Dec 25, 2020 at 10:22 PM.
Racer
Joined: Aug 2019
Posts: 436
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From: Las Vegas
Your engines octane requirements go down as your elevation goes up. Generally, if the Premium they sell in your area is 91, then that’s all you need in that area. If you fill up with 91 and then drive to a lower elevation location, then you might need to address it.
With a boosted engine, I like having a few additional octane points. It's an OCD thing....
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St. Jude Donor '08
I took mine to the dyno bone stock out here in CA with **** 91 fuel, made a few pulls, then added Torco Accelerator while still strapped down, gave it 7 or 8 min to circulate, then made a few more pulls, picked up NICELY!!
Now it did not make more then the average C7 Z makes bone stock on a factory tune, but before the torco, I was off more then 50 HP...
I'm now tuned on it with my bolt ons, runs quite nice!
Now it did not make more then the average C7 Z makes bone stock on a factory tune, but before the torco, I was off more then 50 HP...
I'm now tuned on it with my bolt ons, runs quite nice!
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Drifting
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Your engines octane requirements go down as your elevation goes up. Generally, if the Premium they sell in your area is 91, then that’s all you need in that area. If you fill up with 91 and then drive to a lower elevation location, then you might need to address it.
, assuming OP is running a stock tune. Those running an aftermarket-tune that calls for higher octane should consult with their tuner.
Drifting
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I’ve been to Vegas and lost my ***! 😂🥃. 91 octane is fine!
Instructor
Joined: Dec 2013
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From: Benicia CA
I'm gonna have my Z in and around Las Vegas for most of January and from what I understand the highest octane rating for premium that area offers is 91. Is that going to be an issue
for these Z06's? Probably a stupid question, but thought I would ask anyway. I know they have some Rebel stations out there with 100+ octane, would an octane that high actually work well with these
cars? Thanks in advance for your input.
for these Z06's? Probably a stupid question, but thought I would ask anyway. I know they have some Rebel stations out there with 100+ octane, would an octane that high actually work well with these
cars? Thanks in advance for your input.
I've had no issues with my Z06. I'm sure there is probably some power reduction from the computer but not than I can notice.
Last edited by JJoeG; Jan 1, 2021 at 07:54 PM.
Thread Starter
Intermediate
Joined: May 2017
Posts: 49
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From: Tennessee
