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03-01-2021, 01:18 PM
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#1 |
 Drives: Chevrolet Camaro ZL1 Join Date: Jan 2020
Location: California
Posts: 23
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Mixing Ethenal
California only has 91 octane available so I have been mixing 1.25 gal. of e85 (105 octane) with 17.75 gal. of e91. Its a little more complicated than that because of the remaining couple of gals. of 92 octane left in the tank. (I use Brew city boost site to calculate)
Ca. E85 is truly e85 (83% personally tested @ 2 Chevron stations) I'm getting an average of 92 octane (every little bit helps) and averaging 15% ethenal. The ZL1 manual says you can run up to 15% ethenal safely. My question is has anyone pushed it past e15 and if so were there any problems? Obviously with no tune. |
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03-01-2021, 02:00 PM
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#2 |
 
Drives: 2019 1LE Join Date: Nov 2019
Location: NW
Posts: 137
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Just to clarify, pump 91 octane is e10 most likely.
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"That my friend.. is the sweet succulent sound of the car preparing to ignite the wonderfully tasty nectar your V8 needs to send the screaming bald eagles furiously from the 4 pipes out of the rear of your vehicle"
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03-01-2021, 02:10 PM
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#3 |
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Drives: 2019 1LE Join Date: Nov 2019
Location: NW
Posts: 137
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__________________
"That my friend.. is the sweet succulent sound of the car preparing to ignite the wonderfully tasty nectar your V8 needs to send the screaming bald eagles furiously from the 4 pipes out of the rear of your vehicle"
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03-01-2021, 04:57 PM
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#4 |
    
Drives: 2019 Chevy Camaro ZL1 M6 Join Date: Jul 2019
Location: Sea level
Posts: 1,252
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I use this calculator and have found it to be pretty accurate. I personally would not push it past e15 without tuning for it. You’d be better off IMO just running 91 or a can of good octane booster.
http://www.wallaceracing.com/ethanol-mix-calc.php I also use Fuel It Bluetooth analyzer and phone app to monitor my percentage.
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Kong Stage X Port, NW103, LPE HPFP, XDI +30 Injectors, ARH Headers, Flex Fuel, JMS Booster, AWE Touring, Elite E2-X CC. Stock heads, stock cam, stock pulleys: Tuned by KingLT1. 740whp Uncorrected on e50
Last edited by CW3SF; 03-02-2021 at 08:06 AM. Reason: Add link |
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03-01-2021, 09:01 PM
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#5 |
 
Drives: 2023 CT5 Blackwing Join Date: Sep 2016
Location: Orlando
Posts: 1,618
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Keep in mind that E85 is up to 85% Ethanol.
Also, the gasoline base is usually 85 or 83 octane. You'd have to check the supplier for exact info. There is a pump near my house that sells E85 blended with 93. Slightly more expensive than standard E85, but I always log better with it.
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2017 HBM SS 1LE
Sold 2023 Wave Metallic CT5-V Blackwing M6 |
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03-02-2021, 07:21 AM
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#6 |
 Drives: '18 ZL1 1LE Join Date: May 2020
Location: KY
Posts: 219
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If you go in the app store on iphone there is a decent little free app called e85Cal that makes this process easier on you if you know what you're putting in. The 93 pump gas near me is 10% ethanol and the E85 at the pump is actually right at 70%. I do have an ethanol gauge though so it certainly helps taking the guess work out of things.
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2018 ZL1 1LE - Summit White, PDR, Rotofab CAI, 95mm TB, CSP 2" catless LT's, JMS Voltage Booster, AEM X-series WB, DSX flex fuel sensor, Banks Data Monster, Tuned by Ted Jannetty, 5% Tint, Blackvue DR900S-2CH, Diode Dynamics lighting, IGL Kenzo ceramic coating
Last edited by ZLE dude; 03-02-2021 at 07:26 AM. Reason: added info |
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