Thread: Premium Gas???
View Single Post
Old 09-10-2011, 07:08 PM   #23 (permalink)
steffen707
Master EcoModder
 
Join Date: Oct 2009
Location: Midwest
Posts: 337
Thanks: 4
Thanked 37 Times in 21 Posts
Quote:
Originally Posted by Rokeby View Post
FWIW, I'd bet dollars to donuts that ethanol is the cheaper/est of the
additives used to achieve post-refined premium level octane readings.
I could be wrong, but when the sign at the pump says, "no ethanol added", I would assume that no ethanol was added to achieve the higher octane rating.
  Reply With Quote