you do not clean a turbo.... I cleaned a turbo on a saab and it
ruined it.... although our turbos are not as hot as a gasser a turbo collects
coke inside the oil area... and cleaning will dislodge it... and dislodged coke
clogs the oil return and casue the turbo to fail... the best way to clean a turbo is to use good oil like mobil 1... and over time it will clean it....

there is a thing called an alda line on the back of the engine with a banjo bolt you can clean... and that will help....