Thanks for the replies so far. To answer a few questions from you guys in no order. I am using the Pollak valve since it was a one stop shop and a good deal. I was not aware of the failures until now. I am heating the oil with a HIH that I made with 3/8" for fuel and 3/4" for coolant (both copper) with an extra branch for about 10 twists of 3/8" copper around the veg filter. The oil is definately heated as it exits my HIH. I don't have any way of measuring it but it is pretty warm. I double checked every connection for leakage and possible sucking air and I can't find any. And yes, I am not heating the veggie tank (yet). I have seen other peoples diagrams with no tank heat therefore I thought it would work. I thought I would try the facet pump since I had it anyway but I guess it doesn't have enough wheaties to push. I did take the hose off of it and blow with my mouth and actually pushed oil so I know its possible. I think I can only generate 1 psi myself so I am sure I can find a pump to push it. I really don't know where I can route coolant hoses all the way back there so I hope to either not have to or find some sort of electric tank heater or just a 12V heater to go around my dip tube. Thanks again everyone. Eric.

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1984 300D, 246k, veggie, sold
1982 300SD 301k