It also says the 10-percent ethanol “blend wall” and projected declines in overall gasoline consumption in the United States are assumed to significantly slow any expected expansion in ethanol production over the next decade. Most gasoline in the United States continues to be a 10‑percent ethanol blend (E10). Infrastructural and other constraints severely limit growth in the E15 (15-percent ethanol blend) market. The E85 (85‑percent ethanol blend) market, while growing, remains very small.