Ride: 300D W123 US version, California model Year: Manufactured December 27, 1982, model year 1983 Displacement: 3.0L Engine Configuration: Inline-5 turbocharged diesel, RWD 4-speed automatic transmission Fuel Consumption:
Best highway, driving sustained 100-110kph: 29 miles/gallon(US) = 12.3291675 km/liter
Best city, average speed of 40-60kph: 27 miles/gallon(US) = 11.4788801 km/liter
Combined city/highway: 25 miles/gallon(US) = 10.6285927 km/liter
Ride: 300TE W124 US version Displacement: 3.0L Engine Configuration: Inline-6 normally-aspirated, RWD 4-speed automatic transmission Fuel Consumption:
Best highway, driving sustained 110-120kph: 21 miles/gallon(US) = 8.9280179 km/liter (full cabin and cargo area)
Best city, average speed of 40-60kph: 19 miles/gallon(US) = 8.0777304 km/liter
Combined city/highway: 18 miles/gallon(US) = 7.6525867 km/liter
In all cases, without A/C usage since it gets cool enough here in the US. With A/C usage maybe drop that 1.5MPG (around 0.63 km/liter)
*Drey it would be a good idea to also mention what pressures the tires are running.