Typically the oil is picked up from the lowest point in the case by the oil pump, then sent thru the oil filter & distributed via passages, pipes or both to various parts of the engine & gearbox & wherever else it is needed then flows back to the lowest point again. That was a very simplistic expanation but you get the idea.
I'm not suggesting that my idea is nvd20l problem, there can be many other reasons, but I have come across this problem many times & overful oil was more often than not the cause. It seems like a good place to start as the problem only happaned after the oil change.
I'm not suggesting that my idea is nvd20l problem, there can be many other reasons, but I have come across this problem many times & overful oil was more often than not the cause. It seems like a good place to start as the problem only happaned after the oil change.