SAN ANTONIO – As fuel prices remain a primary concern for household budgets, many drivers are turning to E85 ethanol blends in hopes of curbing their transportation costs. However, experts are warning that the lower price tag at the pump may be deceiving.
While E85 typically retails for less per gallon than standard unleaded gasoline, fuel economy experts emphasize that the actual savings for consumers are often negligible. The reason lies in the chemistry of the fuel itself. E85 is a mixture of gasoline and ethanol, typically containing anywhere from 51% to 83% ethanol. Because ethanol carries less energy density than traditional gasoline, vehicles running on E85 generally experience a noticeable drop in fuel efficiency.
“It typically does sell for less per gallon than regular unleaded,” explained Daniel Armbruster, a spokesperson and senior public affairs specialist for AAA. “However, it also contains less energy, which means motorists generally get fewer miles out of each gallon.”
To illustrate this, AAA points to a standard scenario where a vehicle achieves 25 miles per gallon (MPG) on regular gasoline but only 19 MPG when using E85. Under current market conditions—where regular unleaded might be priced at $4 per gallon and E85 at $3 per gallon—the math becomes surprising. Over a 100-mile trip, the total savings for the driver would amount to only about 21 cents.
Given these findings, experts are urging motorists to abandon the habit of shopping based solely on the price per gallon displayed on the street-side sign. Instead, drivers should calculate their actual cost per mile. Depending on the vehicle’s engine efficiency and the specific price spread between the two fuel types in a given region, the “cheaper” fuel may end up costing the driver more in the long run due to the need for more frequent trips to the gas station.
Furthermore, safety and vehicle maintenance remain critical considerations. Not every vehicle on the road is equipped to handle the high ethanol content of E85. Using flex fuel in a vehicle that is not designed for it can lead to engine damage and voided warranties. AAA strongly advises drivers to consult their vehicle owner’s manual before attempting to fill their tanks with anything other than standard unleaded fuel.
Before making the switch at the pump, experts suggest that consumers evaluate three factors: the specific price difference in their local area, their vehicle’s established fuel economy with different fuel types, and their vehicle’s manufacturer specifications. In many cases, the convenience and consistent performance of regular gasoline may prove to be the more cost-effective and practical choice for the average driver.
As always, checking your car’s manual remains the first line of defense against costly maintenance errors.
Disclaimer: This content is auto-generated for informational purposes only.
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