What would be a better engine to use with alternative fuels such as WMO. My 7.3 idi will burn anything trans fluid, wmo, gear oil, hydraulic oil any type of oil it dont care whats in it. So i was hoping one of the vw diesels would work well with it too even if its just a 50/50 as it gets such great mileage. I would be looking for a little power out of it as well somewhere around 130whp. Will the alh with a mechanical pump and its DI work better or does the idi engines tend to be less picky