Been reading this stuff, Heard a bunch of it before. Does anybody in there right mind want to spray any non compressible liquid into their engine intake? Rice and nut shell dust makes better since (not much). Go for a run. Compare your performance to test bed numbers, if its way off, log your data and call the proper tech (I do question your area rep) and sadly, he's it. If the numbers are close to the same, leave it alone. Man displays will give you all the data and then some on air pressures in many locations. Again, keep comparisons to test bed data. Your 1000 hour service may have been just a clearance test (finger spin). How us rednecks in south Georgia check um. That may be all that's needed. I would assume a performance ride with recorder was also performed (PC plugged in and data recorder and compared). Bottom line, If shes running fine, don't throw any old wives tails into your engine. If you still need facts, call da kids in Texmyas.
I personally have not seen it in a CAT, MTU or MAN manual. I also have pulled off hundreds of air cleaners and that side of the turbo is always crystal clean, even on boats with airseps and old 2 stroke DD's routing blow by into there. I also have seen some turbo's and the exhaust side has discoloration but have not seen where it needed cleaning per-say. That's why I'm stumped on this whole deal.
Does anybody bother doing any research on these subjects before posting. Water washing and dry washing of both sides of the turbo chargers has been carried out for 40 years that I know of. A very simple Google search will show you how it is done. Not a common practice on smaller diesels but that is not say it can not be done. Very common, in fact part of normal procedure on larger marine diesels. That quick Google search will show you a promotional YouTube video for cleaning a turbo in a car. I have no interest in the product before anybody thinks that but it will give you an idea of what is involved. Rcrapps, marine engineers have been spraying non compressible liquids into marine diesels for years. LOL.
And I have been hearing about it also. Don't mean I agree with or going to perform it on my great running 36 year old beast. Nor, recommend something I saw on UToo'd to some other person to do on his high value engine.
Personally it was a daily job for me on 1000 KW Gensets up to 74,000 hp main engines, like I said "larger marine engines" lol.
As I mentioned earlier the Man mechanic said absolutely don't do this on their engines. The turbos have to be disassembled and cleaned. I'm going to leave them just like they are.