The turbo is bone dry last time I checked(1 week ago).
It has been reluctant to start in temps less than 15 degrees fahrenheit. Last year, it would start 10 degrees below zero. I suppose that might substitute as a compression test?[
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However, with so much oil built up inside, could that have affected the starting? Sometimes the started locked while cranking....ughh but when it cranked, the engine refused to fire(I glowed it thrice). Temp was 13 degrees, it had been as low as -2 the night before. Took my trusty SDL with 280K miles to class that day.