Renewable gasoline additive

ETHANOL

This corn-derived fuel often blends with gasoline to cut emissions and stretch supplies.

"Renewable gasoline additive" points to ethanol because it’s a biofuel commonly blended with gasoline to reduce emissions. The word "renewable" hints at its plant-based origin, like corn or sugarcane, which sets it apart from fossil fuels. It’s a straightforward definition with no wordplay—just a direct reference to ethanol’s role in cleaner fuel alternatives.