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Old 07-20-2012, 06:31 PM
2003exmark 2003exmark is offline
Location: Fort Wayne, IN
Join Date: Jul 2012
Posts: 5
Mein Auto: 2004 X5 4.4 2007 530XI
No diesel here in the states but 04 - 06 4.4i does about the same as the 3.0 gas maybe the 3.0 is 1 mpg better. I average 18.5 mpg and 21-23 on the highway (US Gallon). Driving the 3.0 is o.k. but driving the V8 is an experience! No comparison. I think in a lot of instances the V8 uses less fuel because it doesn't have to work nearly as hard to get to speed and maintain it plus you have the 6 speed automatic vs. the 5 speed automatic. You could probably do a bit better with the manual 3.0 gas but not sure. There is so little difference in fuel economy between the two that I would always pick the 4.4i! I don't really know about the 4.8is. Good Luck!
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