Hands down the easiest way that i have resolved the issues is to take the air cleaner off and have some one spray wd-40 while you crank. you will soon here the engine spurt to life with even more power when the diesel gets through the lines. you may here some knocking when you do this. mercedes engines knock alot when you use the wrong grade of fuel. deafinetly beats cracking lines and spilling diesel everywhere pluse it makes the engine sound cooler. once you here diesel taking over STOP SPRAYING!!! an over load of fuel will deafinetly shoot you egt out the roof so be carefull and lets keep these classics alive!~Luke