Originally Posted by barry123400

The problem with that picture of yours boneheaddoctor is that us 240d owners are in it. I assume mercedes sold this model for additional economy. Generally it is barely there if at all even with standard transmissions. At least they dropped the tail fins to deal with our sonic speeds. Strange nothing aftermarket has turned up to really help milage to some extent. Primary engine design may be the limiting factor though. edit:coldwar have noticed on my older pre tdi diesel volkswagons that they gain signifigant milage on a really hot day when on a long trip. Has happened too many times to be circumstance. Perhaps it is the same with the mercedes diesels but have never really taken notice yet. The hotter air is less dense of course but seems to aid combustion to some extent when really warm out. Thinking 85+.