I have changed from a 2002 320d to a 2005 320d. Both are e46s, tourers and 150bhp. The only difference is the 2005 has a 6 speed box. So why am I getting around 10mpg less on the newer car with 30000 less miles???? Any ideas??? Thanks

all depends what speed you're cruising at.I got a 92 325 tdi and the dash tells me how many mpg i get at whatever speed im driving at.Do the new ones not have this?You gotta find your optimum speed