I was looking at an aircraft magazine. A aircraft maker is using Mercedes Benz diesel car engines minus EPA items. The interesting part is the engine is rated at 1500 hours and they expect to raise it to 2000 hours before requiring an overhaul, however the high pressure pump is only rated for 600 hours. Not sure how Jet A compares to df2.
They talk about how Diesel engines will become more common.
They talk about how Diesel engines will become more common.