▁based ▁b iod ies el . ▁This ▁caused ▁the ▁city ▁some ▁initial ▁mechanical ▁issues , ▁but ▁after ▁several ▁years ▁of ▁ref ining , ▁the ▁entire ▁fleet ▁had ▁successfully ▁been ▁converted . ▁ ▁In ▁ 2 0 0 7 , ▁Mc Donald ' s ▁of ▁UK ▁announced ▁it ▁would ▁start ▁producing ▁b iod ies el ▁from ▁the ▁waste ▁oil ▁by product ▁of ▁its ▁restaur ants . ▁This ▁fuel ▁would ▁be ▁used ▁to ▁run ▁its ▁fleet . ▁ ▁The ▁ 2 0 1 4 ▁Che vy ▁Cru ze ▁C lean ▁Tur bo ▁Dies el , ▁direct ▁from ▁the ▁factory , ▁will ▁be ▁r ated ▁for ▁up ▁to ▁B 2 0 ▁( bl end ▁of ▁ 2 0 % ▁b iod ies el ▁/ ▁ 8 0 % ▁regular ▁dies el ) ▁b iod ies el ▁compatibility ▁ ▁Railway ▁usage ▁ ▁British ▁train ▁operating ▁company ▁Virgin ▁Tra ins ▁West ▁Coast ▁claimed ▁to ▁have ▁run ▁the ▁UK ' s ▁first ▁" b iod ies el ▁train ", ▁when ▁a ▁Class ▁ 2 2 0 ▁was ▁converted ▁to ▁run ▁on ▁ 8 0 % ▁pet rod ies el ▁and ▁ 2 0 % ▁b iod ies el . ▁ ▁The ▁British ▁Royal ▁Train ▁on ▁ 1 5 ▁September ▁ 2 0 0 7 ▁completed ▁its ▁first ▁ever ▁journey ▁run ▁on ▁ 1 0 0 % ▁b iod ies el ▁fuel ▁supplied ▁by ▁Green ▁Fu els ▁Ltd . ▁Prince ▁Charles ▁and ▁Green ▁Fu els ▁man aging ▁director ▁James ▁H yg ate ▁were ▁the ▁first ▁passengers ▁on ▁a ▁train ▁fue