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I recall reading several places that heated diesel doesn't really matter, then again they don't really know our specific IPs either. (I read someone's theory that the reason fuel is returned to the fuel tank is to keep it warm for winter driving.) I also read on some of the WVO sites that it really doesn't matter if the WVO heads back to the diesel tank because it is such a little quantity. I would prefer in my own setup if I could get a 6 port valve and have it just sent back to the WVO tank. It just seems to me that any WVO in the diesel will raise the cloud point a little bit. I'm not following you coachgeo, I've never really looked at our fuel return system before, can you build up a simple diagram?
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