LiquiMoly in 1999 E300 TD?
It would be fine to use the Diesel Purge product on it as well - you might have more noticeable benefit from doing the purge procedure than waiting for the fuel additive to work.
I've wondered if the DP would be okay to use on common-rail motors, but haven't heard much on that.
It was developed quite a while back, and is really good with older mechanical pump systems.
The 5-cylinder 300d cars love it, from what I've gathered, too bad I don't still have one.




