Unrelated but do you know why I am paying $0.45 more per gallon for 93 octane? That is a pretty big spread historically, usually it is much smaller difference may 15-20 cents.
Increased demand.
Premium gasoline remains a small volume of the overall US gasoline market. Sales through the first five months of the year, the most recent period available, were 10.8pc of total US gasoline supplied, according to the Energy Information Administration (EIA). Demand for premium gasoline remains well below highs seen in the early 2000s.
But premium gasoline demand through that period was 12.2pc higher than the same months of 2014 and 14.5pc higher than the ten-year average for the period, according to the EIA. Regular gasoline demand, by comparison, was 3.2pc higher than year-ago volumes and just 0.2pc more than the ten-year average.
http://www.argusmedia.com/pages/NewsBody.aspx?id=1080960&menu=yes
Which surprises me. I would expect more people to quit accepting vehicles that require more expensive fuel without greater mpg.