Thread: Best premium gas (octane being equal)?
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Old 07-18-2010, 07:16 AM
Goopie 18 Goopie 18 is offline
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Join Date: Jul 2005
Location: Punta Gorda, Fl
Cobra Make, Engine: SPF 2473, Roush 427R
Posts: 203
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Default ethanol/non ethanol
All my local stations carry 93 octane unleaded. I found a station that sells ethanol free 90 octane gas. Which would be better for my Roush 427R? Is 90 octane ethnol free gas as powerful as 93 ethanol?
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