Some states mandate Bio diesel. Oregon requires a minimum of B5 I think, but most is B20. The good thing about bio is it does increase lubricity and cetane. I never had any issues with clogs, but I would use seafoam once in a while to keep the fuel system clean.FYI for diesel owners...
DO NOT RUN BIO-Diesel! Told to me from the dealer!
Bio diesel clogs up fuel rails and injectors. Since it is a fuel issue, not covered under warranty!
:simrak:
I don't run that crap anyways, but just thought I would let others know.
I don't own a diesel anymore but really liked my powerstrokes when I had them. Never had any issues, but never put high miles on mine.