Drain old oil, new no name cheap generic filter on, new clean cheap oil Gulf Western 20w50 dino, Motul Engine Clean in, idle for 30 minutes & change oil/filter again using good Ryco filter & Motul Turbolight 4100 10w40 oil.
Will see how it goes. Being a Motul product I expect it to work well.. Product contains naphta (Petroleum) hydrotreated. Can doesn't say what else is in it. Should be good to clean out the oil lines in the turbo as well

Hopefully this'll totally solve some slight HLA ticks on a cold engine start which has gradually been disappearing since last oil change when I added Nulon's Lifter Free to the oil.