The trick to the Diesel fuel treatment is to run a regular fill of cheap motor oil (30 weight non-detergent, for instance) for lubrication, and add enough Diesel to make the crankshaft and rods dip down into the oil/Diesel mix. I like to add 2-3 quarts, maybe a gallon at most. That creates an agitator effect like a washing machine, while still pumping enough lubricant to the bearings to prevent scoring. Straight Diesel would probably end up with damaged bearings and/or a scored crankshaft.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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