Oil consumption

[Chamberpains]

(11-07-2018 )milekam Wrote:  I had the blowby checked by two dealerships which was 3 percent and took the head off three and half months ago it was fine. Now its eating up oil when the regens starts. What could this be?

Quote:had them look to make sure wasnt carbon buildup or oil on the top half of the engine before I purchased it.

Pulling a head to just "check" carbon packing or oil in the upper cylinder makes very little sense. Pulling the head is a very labor intensive job. So no one pulls one off to just look.
This statement is very odd. Are you sure they didn't just pull the valve cover and tell you everything is fine? They can check carbon packing by pulling the injectors and bore scoping the cylinder. But even then, without evidence of actual problems I don't see any salesman having this done just to "check" carbon packing for a potential buyer.