Nice. Do you think your hard road test 30 mins. helped much to improve the results? Did you do similar hard road test 30 mins. before doing the solvent soak/clean/purge? (Trying to establish a benchmark).
Presuming the problem was stuck rings/clogged ring lands, running full synthetic motor oil should help loosen things up further over time.
I am a big fan of doing the "Italian Tuneup" from time to time to keep these engines healthy.
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1985 744 gle d24t
1985 745 gle d24t
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