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View Poll Results: Which would be better for a ZL1? | |||
100% Pure Gasoline - Rated at 89 Octane | 3 | 13.64% | |
Up to 10% Ethenol - Rated at 93 Octane | 19 | 86.36% | |
Voters: 22. You may not vote on this poll |
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Thread Tools |
04-13-2013, 11:43 PM | #1 |
Drives: '12 ZL1 #1609 Join Date: Feb 2010
Location: Georgia
Posts: 1,762
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Gasoline, 100% at 89 Octane or 93 Octane with Ethanol?
What is better?
100% pure Gasoline at 89 Octane or Up to 10% Ethanol at 93 Octane Found a gas station near me that offers 100% pure Gasoline on 89 Octane only and started wondering which would be better for our cars.
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04-13-2013, 11:46 PM | #2 |
Drives: 2012 ZL-1 #1442 Join Date: Apr 2012
Location: Phila. Pa
Posts: 201
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The 93 octane for sure is what you want. The computer will cut some performance for the lower octane if used I've heard
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04-13-2013, 11:52 PM | #3 |
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Drives: Zoe the ZL1, 2012 Frontier Join Date: Apr 2011
Location: Mars, PA
Posts: 6,071
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Octane Ratings are Octane ratings. It doesn't matter what the fuel blend is. The RON and MON are used to get your pump octane ratings. Octane rating is a measure of the "Anti knock" capabilities of the fuel. It describes the ease and reliability of ignition.
Now, that doesn't mean the ethanol blended fuels won't do other things to your engine but from an octane rating it doesn't matter where it comes from. If you're at a pump that has anything over 10% I'd be a little concerned as fuels over 15% need to be used on engines billed as "flex fuel" capable.
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04-14-2013, 03:24 AM | #4 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,809
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93...ethanol isn't the antichrist. E85(85% ethanol) has an octane rating of 100-105 and 100% ehanol has a rating over 110. You must have fuel system upgrades to run E85 and reap the benefits. ADM has performed this upgrade to a ZL1 to use the E85 higher octane in one of their builds.
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04-14-2013, 07:14 AM | #5 |
Drives: Camaro Join Date: Aug 2012
Location: USA
Posts: 89
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93 octane rated gasoline (even with 10% ethanol) is significantly better than straight 87 octane in a high performance engine.
In a 2000 Accord it won't make a lick of difference. In a 2012 ZL1 it will be a very big difference. |
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Tags |
ethanol, gasoline, octane, pure |
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