its looking like 100 octane gasoline is on the horizon along with new high compression engines to meet fuel economy standards
http://www.freep.com/story/money/cars/mark-phelan/2017/04/25/new-gasoline-promises-lower-emissions-higher-mpg-and-cost-octane-society-of-automotive-engineers/100716174/
http://www.thedrive.com/news/9836/100-octane-super-premium-fuel-is-coming-to-a-pump-near-you
http://www.freep.com/story/money/cars/mark-phelan/2017/04/25/new-gasoline-promises-lower-emissions-higher-mpg-and-cost-octane-society-of-automotive-engineers/100716174/
http://www.thedrive.com/news/9836/100-octane-super-premium-fuel-is-coming-to-a-pump-near-you