
E85 is 23% cheaper than regular gas at $3.14 versus $4.07 per gallon, but a 2026 Chevrolet Trax gets 27% worse fuel economy on E85 (22 mpg vs 30 mpg). Driving 100 miles costs $13.57 on regular gas and $14.27 on E85, making the switch worthwhile only when the discount exceeds the mileage penalty.
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Summary by ByteBrief
Why Costco won't cut gas prices as quickly as rivals