To prime the turbo, take off the drain back from below the turbo that goes to the sump, then fill the oil pipe inlet hole with engine oil until it flows out of the bottom of the drain on the turbo.
The replace drain tube, you only need to take off the flexy bit, so long as you can see it ok, I prime them before fitting, as it is a bit easier.
To run in, it is better to keep the revs up a bit but not in a high gear to make sure the bores don't glaze.
Above 500 ish, I am using full throttle for very short periods say 5/10 seconds at a time.
Up to it's first oil change at with more mineral oil, I use up to about 4000rpm, but do not let the engine labour as it tends to ROCK the pistons in the bore, until rings are fully bedded in.
The "benefit" of them mineral oil is it is crap!!, it allows contact to occur between the sliding surfaces, much more readily than does fully synthetic, (unless it's CASTROL RS!!).
A GOOD like SILKOLENE PRO S, will protect so well, it tends to promote bore glaze, which will make it always use oil as it stops particularly the rings bedding in which is the main thing that beds in during running in.
tabetha