I have been raeding with interest a few threads that refer to bio diesel and "how bad" people say it is.
I have a bit of an interest in this area as I make the stuff for a job but I am also a diesel fitter so I think I have a balanced view on the subject.
First up Bio does not block up your filter with rubbish..... The rubbish has always been in your tank from running dirty mineral diesel... The Bio diesel just loosens it up....so yes after a tank or so of bio you should change your filter or better still clean out the tank before you use it.
The other one we hear is "bio stuffed my injector pump"....
Bio diesel has more lubricity than mineral diesel so it should be better for your pump. But you need to know what blend of bio you can run in your vehicle. Older injection systems use rubber seals and o-rings and that is not compatable with Bio Diesel.
Most manufactures allow the use of a BIO blend.. that is a mix of bio and mineral diesel. B5, B10, B20, B50 and some allow straight bio B100.
Remember the EU has been running bio for years and I think it is mandated that all of there diesel must contain some bio.
Toyota have stated that our Hilux's can use a bio blend of B5 with no problems at all.
I use B100 in my 2.8 ltr 2x4 hilux and I have had no problems in 30,000kms. infact it runs better on the stuff and blows no black smoke.
As for the new Hilux .... at a B5 blend you don't even know it is in there :o
Remember that most of the horror stories you hear about are from home made snot...not the stuff from a servo.