I used liquid moly diesel. Ran it until the engine was at running temp (80+C). Ran the engine at idle mostly but reved it a few times to ~3500 or so.

All I got from a 10-15 minute diesel purge was a slight discoloration. It looks like it might have come from the rubber hoses I used to connect the plastic bottle to the primary filter and the diesel left in the pumping system when I started.

Seems a like a wasted effort.

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84 300SD
85 380SE
83 528e
95 318ic