Brilliant bit of kit. Electronic control but mechanical injection at constant 2200 rpm. Unlike the insane common rail system used by Thielert, loss of electrical power is a non event. Wish I could afford one.
As regards lubrication of mechanical injection pumps, the problem is to do with the design of the pumping mechanism. Bosch pumps use in line pistons or rotary swash plate operated pistons, both of which tolerate avtur (or central heating oil) Other designs use cam operated rollers which can wear rapidly. The common rail system does away with mechanical pumps, but ensures loss of the engine in the event of electrical power failure. Not a good set up when a broken alternator drive belt means a forced landing.