f 450 7.3 wvo

hi all,i have a 2000 ford f450 7.3 power stroke,i just converted to wvo with a dual tank coolant heated.
some of my oil suppliers are using creamy liquid shortening.
i will like to know if it can hurt my engine
i recently have a problem and replaced my hi pressure inyector pump after run my truck on wvo for 10k milles,my truck is 170k milles now and some people with a 7.3 running on diesel have the same problem at this amount of milles
can some body advice me if there is a relation hi pressure inyector pump problems link with wvo?
thanks

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