Interests:Ryding, ballroom dancing, Crossfit, a Border Collie-German Shepherd named Bailey...Red Sox, Patriots, and RCR fan.
Your Ride:2011 Spyder RTS, Viper Red
Posted 01 May 2012 - 03:19 PM
Using 89 octane my most recent fuelings, I have gotten between 29.5 and 31.9. I use it to commute, run errands, and some minimal touring as of yet. We also have a great many hills so I am sure that is a factor.
The only conclusion I have made in our first two months is that 89 octane is better for mpg than the 87 was.