Automakers privately expressed concerns about E20 fuel contamination, citing chloride and moisture issues. This data emerged after the auto lobby withdrew a complaint to the government. Industry tests found high chloride and moisture levels in many fuel samples. These contaminants are reportedly harming vehicles and reducing performance.

Automakers privately expressed concerns about E20 fuel contamination, citing chloride and moisture issues. This data emerged after the auto lobby withdrew a complaint to the…

The carmakers’ emails show for the first time how they are privately worried about contaminants in E20, like chloride and moisture, which they say are hurting vehicles, even as…