Ok, I have read what has been posted and have talked to a diesel mechanic with 15 years of experiance and he told me that the veg oil will clog the injectors in my 2001 F250. I ran into a guy camping that runs a 99 Freighliner converted to pull his fifth wheel camper and he runs a 70 % veg oil and 30% diesel mix for viscosity. He said if he didnt run the mix that the veg oil would get too thick when its colder outside. I understand that my motor in my Ford is different than his Cat motor. My truck is past its warrenty however its our main set of wheels. To be honest I'm scared to try it as we need the truck for everyday driving. Has anybody had any issues with cloged injectors? I'm all for getting used oil at the local restaurants as we dont have "real bio diesel" at any stations here in our area in Northern California (not anywhere close anyway). Any help would be appreciated. Bill

 

I'm going to assume for a couple of minutes here. If he's running a pre-1995 (may have the exact year wrong) Class 8 Freightliner truck...then it's possible it isn't running a HEUI; or he's running a "Frankenstein"...the electronics have been removed from the motor and it's running a mechanical fuel system. Basically if it's less than 10 years old and it's got a Caterpillar engine....it's got a HEUI on the heads and the motors are basically the same. Displacement, number of cylinders (V8 vs I-6) and software being the only differences between the two. When you consider it, that isn't much difference really.

 

One quick and easy thing you can do is keep B5 in one tank and B40 (or better) in the other, heres the hard part-REMEMBER TO SWITCH TANKS a mile before home. that way you can have your cold start-up cake and eat it too. After the engine gets hot you can switch goin' down the road and your hot return line fuel will help get the heavy tank moving.-Any hiccups flip the tank switch. I run B99 that way but it doesn't get to cold here-just insurance