Only if your engine needs it, and the Vanagon doesn't.  Modern higher
compression engines with knock sensors will get better mileage because the
sensor detunes them to run regular gas without knocking.  Like the EVC.

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Rocket J Squirrel
Sent: Friday, May 03, 2013 11:05 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Sucky Gas Mileage - ethanol free

I didn't know that higher octane rating = better mileage.

--
Jack "Rocket j Squirrel" Elliott
1984 Westfalia, auto trans,
Bend, Ore.

rn