Hi,

I've driven my "new" 1981 300D for the last week and it is a pleasure to drive. The engine pulls strong.

My calculations for fuel mileage gave an impresive 28.4 mpg under the following conditions:

-sea level location
-100 % city driving. Lots of stop lights.
-Light foot on gas pedal
-Tire pressure OK
-wheel balance OK
-Alignment OK
-empty trunk
-only myself in the car all week long

I still haven't changed all the lubrication fluids nor filters. I haven't adjusted valves (shame on me), I don't know when it was last done.

My question is: am I at the upper level of fuel efficiency, or is there room for improvement? Will new fluids and a valve adjustment provide a noticeable increase in fuel mileage?

The 28.4 mpg is a good indication of the condition of the engine?

Thank you very much.