questions on led's & fuel
 

can any one out there tell me how could i put led's on the rear break lights & if i have to use resistors which i do but i dont know which omhs should i get out there? and is there any alternative fuel out there i could use on 2000 x5 4.4 which that wont harm the engine? p.s the leds lights question is for 00 x5 4.4 thanks u guy

Not sure about the LED's I'll let someone else answer that but in regards to fuel anything north of 91 Octane or 98 in Europe is OK. You can get a propane conversion kit for the X5 which you can run it on propane or regular gas but you lose the spare tire space for the propane storage.