Hi, I recently bought a 75 240d with a bad motor and I have been trying to get it to start so I can hear for myself how damaged the motor is (the PO said it sounded like a cement mixer). Although I can get the motor to crank fine and it even sounds like it wants to fire up...it wont. The Glow Plug light on the dash does not light up and I am now going to pull the glow plugs and check them. My question for this post however it the diesel fuel in the fuel tank. The PO told my he filled it right before he blew the motor two years ago and said that diesel fuel should keep fine and I should not have to drain the tank and add fresh fuel. Is this accurate? The tank is literally full and I would hate to have to drain it but I will if that is what I need to do. Thanks for any help or tips you can provide. Chris