I removed the injectors from the Womble (1983 300TD) and had them checked. Four failed. I had them locally rebuilt and then reinstalled them. What is surprising to me if the improvement in mileage. Pre-rebuild, my in-town mileage was 19, 23 on the highway. I haven't been on the highway since the rebuild, but my in-town mileage is up to 25! I've noticed lots of threads dealing with ways to tune the car, but this simple undertaking led to a 20% improvement in fuel efficiency!

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Der Panzermann und Fraulein Fahrvergnuegen

1991 420SEL 201K "The Big Blue One"
1985 300DT 205K chassis/285K engine nee California emissions "Goldbug"
1983 300TDT 255K "The Womble"
1983 300 DT 214K "Sea Sprite"-Rear-ended a truck
1983 300SD 285K "The Donor" Gave his life so that others can live
1980 500SL Euro 105K "Der Panzer"