According to a recent article, drivers in Honolulu (and perhaps elsewhere) are complaining of reduced gas mileage in the two months since Hawaii switch to gasoline blended with 10% ethanol. According to the Ethanol Promotion and Information council, most drivers using a 10% ethanol-blended gas will experience a 1-2% drop in mileage. But some drivers in Hawaii are claiming that their mileage has dropped by 25-30%. While I’ve heard of substantially lower mileage in cars running on E85 (a blend of 85% ethanol and 15% gasoline that can be used in certain makes/models) I never really heard anything about reduced mileage in the more ’standard’ 90/10 ethanol blend.
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