My wife primarily drives the 4.8i and that's likely why 14ish is possible. My E53 4.8is makes marginally better power and gets 16.5 average on basically the same city/highway driving mix! I actually checked the E70 for a fuel leak as I didn't think it was possible for it so be such a gas hog . . . . lol
Originally Posted by 1naztyx5
Yeah is crazy...I seriously have to drive VERY conservative for it to be around 14/5 15
2011 X5M Alpine White/Sakhir Orange, Eucalyptus, Spare tire!, Comfort, Soft Close, Tech, Rear Climate, Individual dash, Individual Audio, HUD, DVD, USB, Cold.
2008 X5 4.8i Space Gray/Tobacco, Premium, Sport (includes AD), Active Steering, HUD, Tech, Comfort, Cold, Climate Package, 3rd Row, Prem Audio, running boards, OEM hitch
2005 X5 4.8is
2004 X5 4.4i Sport
2004 X3 3.0i 6MT