Mine has 400hrs and I see no reason to not think I’m good for another 400hrs. I did recently replace the air compressor. The earlier ones were not painted black but the new ”updated” ones are black. That’s just a quick way to determine which one you have. Fuel injectors and air injectors are critical maintenance items. Also there are 2 very small inline filters in the oil lines to the air compressor that should be changed regularly.