I've used CRC GDI stuff as well as Seafoam annually using a spray nozzle through the IAT port. I have had good results when done on an engine at operating temperature and with a heatsoak. I have not saved any borescope shots after my last cleaning but this dudes video really is similar to my results (My buildup was not nearly as bad, I have no buildup as I clean every year)
https://www.youtube.com/watch?v=1_giqO78tLY
https://www.youtube.com/watch?v=48JSlXlvMC0
Thought I would share as this for anyone interested in what a chemical clean can do. It wont get the engine spotless but will melt off any of the chunky buildup.
https://www.youtube.com/watch?v=1_giqO78tLY
https://www.youtube.com/watch?v=48JSlXlvMC0
Thought I would share as this for anyone interested in what a chemical clean can do. It wont get the engine spotless but will melt off any of the chunky buildup.