been using bio derv now for 1 year. at 90p a litre cant knock it. the guy i use has a good set up, only uses top quality oil. its actually crisp factory rejections he uses. checked my fuel filter last month. and it was as clean as a whistle, no clogging ,no residue nothing. havnt had any problems at all with it.
Good to hear that.Is it pure bio or a mix?What model are you running? My old C15 would run on 75% veggie oil in summer & 25% in winter,but I am very wary of using it in my HDi.In Germany I use 30% bio from the pump as Citroen say that's the max.I never use it here.
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Never, ever use it on an HDi engine. Also it tends to adversly affect Lucas pumps on earlier 1.9D.
The Older I get the Better I Was!