and to think, I switched over to my 01 x5 3.0 from a newer 06 f150 lariat to get better gas mileage haha.

so far I'm averaging 4~5mpg better and can still tow all the things I bought the f150 for.

I bet the diesel does get better mileage though. gas/diesel is same price here in south carolina but unloaded diesels do get better mileage pound for pound.