Diesel Purge is a specific product made by German company Lubro Moly. Kind of hard to find, I got mine from **************.com. They also give you a little copper tube and instructions on how to use it.

You run it directly through the injection pump (not into the tank), it cleans the injectors better than anything else out there. They also make various fuel additives that are supposed to be good. I think I will pop a bottle of their valve cleaning fuel additive in my 83 300dt at some point.

If your injectors are really clogged you may need to run 2 cans in a row the first time. Some mechanics recommend running a can every six months as a preventative measure.

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Gabriel
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1983 300D Turbo, metallic brown - "Clarence Brown"
169,000mi / 0-60 9.5 sec.