As far as the intake, are you talking about The Berryman intake valve and combustion cleaning formula or the B12? My understanding is both can be used for this. I assume you mean the former but just double checking. Thank you again!
There is a puff of smoke after idling. Not a great deal of volume and only for a brief moment or two. I'd call it not extremely white, some gray in it. Definitely not blue.
Thanks for that. I'm guessing that you don't think just doing the sludge removal additive/flush followed by several short oil changes would do much. Or maybe you do depending on severity of sludge. I can tell you I shined a flashlight in there and don't see strong evidence that oil isn't...
Are you of the opinion that running a cleanser through the intake can reverse/improve poor oil consumption? How would you free up drain back holes? Thanks for your input.