Still blending with no problems, and no poly in the tank by keeping the mix at least 50% pump diesel and the remainder is a blend of biodiesel, UVO, kero and petrol, adjusted seasonally. Feedstock is used canola oil cleaned with cold upflow then cold filtered to 5µ. Cold filtering the mix when it's pumped into the vehicle tank eliminates the fats, PHO, and HMPEs that clog filters and screens. I get the UVO from the best suppliers who only cook raw spuds and fish and give the animal fat UVO to the 2-tank folks I know. There's enough for everyone.

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“Never attempt to teach a pig to sing; it wastes your time and annoys the pig.” ― Robert A. Heinlein