Have been running biodiesel in my 1984 Mecedes 300 td for a while now. I accidently pumped some Biodiesel mixed with water in the tank. It ran fine for several days, but today I went on a trip and it will only go about 40 mph. I checked the primary filter and it looks good. After a stop and idle I can go for a little bit and accelerate. If I prime it it will take off for a little bit then loose power again. I do not know what to do to get back home. Please help. I have added some water remover and some number 2 diesel. One of those two seemed to have casued the problem.