Wintron is a promising additive but it is just simply not cost effective.
Look at the totals, 1 liter treats 100, or about 26.5 gallons. For a total price of $1.50/gal for WVO processed fuel (including all expenses and utilities) + ($51.35/liter for wintron + shipping) for a total price for 26.5 gallons of fuel at: $91.10/26.5 gal
If I had a B50 mixture of biodiesel and regular diesel say at $2.50/gal the total is: $53 for 26.5 gallons
If I had a B25 mixture of biodiesel and regular diesel say at $2.50/gal the total is: $59.63 for 26.5 gallons
Even if the Wintron works 100% as advertised, and I haven't used it... it is still just not economically feasible, its nearly twice as expensive.
http://www.biofuelsystems.com/shop/p...products_id=37
29.38 British pounds = 51.350364 U.S. dollars