This maybe a repeat question but I'm new to the part of the forum, I have a '04 6.0 psd 4x4 and don't want to modify my truck alot but would like to try Bio on my upcoming trip if I can find it. Question is want is the numbers b5 b20?
95%regular diesel and 5%bio and so on and what % is safe to use with no mods. Thanks

 

You can run any mix you want with out modifications. BioD will run in your truck exactly the way it is. I noticeda small decrease in mileage and slight lose in performance from my tuner/mods. In my area BioD sells for less than DinoD so I still get the same miles to the dollar as with dino d plus all the benefits.

No mods needed. Run whatever mix you like.

 

Ford says B5 is all you can use. They will attempt to blame BD for any ills your warrenty should cover in order to avoid providing warrenty service.
Many use much higher and it really not possible for them to tell the percentage you were running unless you still have a tank full of B(higher than 5) when you go in for service.

Practically speaking you can run B100 without any mods.

 

and . . . the biodiesel lubes everything along the way!