Had a customer in for a service at our garage, he'd mixed his own diesel/bio fuel, cost him over 300.00 notes to flush the system out and replace all the filters/ steam clean the fuel tank after the addatives he put in the fuel congealed and blocked all the filters and pipework.:speechless-smiley-6 BE CAREFUL WHAT YOU PUT IN. It could cost you more than buying pump bio diesel in the long run.:emoticon_U: