my (grey) '87 300D sees on a regular basis 29-31 combined on a tank.
winter city drops to 24-26
highway MIGHT hit 31, so a combined, equaling that of my summer city consumption
150k miles
my '95 E300 Diesel sees about 3-4 miles to a gallon more all the way around
130 something
the blue '87 300D sees maybe 1 mpg less that i've noticed over the past month or so, but its pushing 200k
my little sisters 300D 2.5 with 205k sees the same as the first 300D
the 300SD i had, well... i didn't even go thru the first full tank