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Originally Posted by Allch Chcar
It doesn't mention mixing with a lower Octane Gasoline so maybe they just used regular 87? If anything I would imagine this blending stock would be 85 Octane or so.
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Yes, their E10 blend is made from 90% RG (87 octane) and 10% ethanol with a 90.5 total octane (R+M/2). Our real world E10 is 87 total octane.
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Ethanol blends are prepared by splash blending in-house
using RG and denatured fuel-grade ethanol blendstock
(E100), also from CPChem.
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