View Single Post
  #5  
Old 03-28-2011, 10:59 PM
david in german david in german is offline
Officially Welcomed to the 'Fest
Location: Mannheim Germany
 
Join Date: Mar 2011
Posts: 130
Mein Auto: BMW and Mini
I have a daily commute of 100 miles on the autobahn and have tried many things to get the best mileage that I can. I have learned that I will get more miles per tank with 91AKI octane vrs 95 AKI octane and if I set my cruise control on 65 mph I can bounce between 35 and 45mpg for the entire drive. My average MPG for the drive is 36-38mpg. My wife's efficient dynamics 118i will do the same commute at 15-20mph faster and do 42-45 mpg. My Mini is a 2009 MCS now with about 62k miles, I run Royal Purple oil. The Royal Purple gave me an additional 2-3 mpg when I started using it.
Reply With Quote