The engine we're rebuilding - after 9 months of extended heavy loaded operation running 100% unheated wvo - shows serious fuel system problems - the glycerol, or whatever it is, gums up the injectors and pumps, also carbons up pistons, valves etc. (nothing new here).
From day one I've run mine on a duel fuel setup - start and shutdown on diesel, when up to temp switch over to 90% wvo/ 10% diesel - I depend on the engine daily for suplimentary power but still consider this setup an experiment to see if this system is viable in the longterm (with consideration to maintenance, including parts repair/replacement etc) Have to wait and see how it looks during the 1000 hour decarbon maintenance
With a 12/2 consuming 1/2 us gal (1.9L) per hour and diesel over $5.50 per gal - long term operation running dino diesel isn't a financial option for me, I really need free fuel source - wvo/wmo whatever- to keep this a daily operation instead of a once in a blue moon backup generator
Cheers, Fred