i collect wvo from resturants for my business outta san luis obispo ca. my boss runs straight b100 in his megacab, the 2000 24v collection truck runs on it and has the greasecar conv. and my 97 12v runs on it and havent had an issue besides filters getting clogged. if ur having problems with bio, or wvo then ur doing something wrong. we've been doing this awhile and with eveyone we've sold to and all the fuel we used ourselves.its all about getting the particales and the water out. if u dont do that then yes you will have issues.
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97' 2500 ext. cab 4x4,5-spd,new 12v head, dyno'd injection pump, big injectors, upgraded turbo, 5" exhaust straight pipe, huge air filter, luk clutch, front leveling kit