So I work at precision turbo in the service department and I'm trying to find diagrams or anything to help me figure out how oil flows thru any and all honda engines such as a B18, K20, etc. This is part of my evaluation process of my probationary period. This will also be useful for helping customers to use the right location to get oil from for their turbo. I have looked all over the internet and cannot find anything. Any help would be appreciated greatly and with documentation of your source of information. We have been recommending to use the oil pressure sending unit to feed a turbo but I'm not sure if that is the last place in the engine that gets oil and if it's clean, filtered oil or not. Thanks!