if you can't get the gelled fuel out I have had success with hooking up a portable heater blowing under the engine compartment to ungel the fuel. Before that I would dump about 3-4 gallons of kerosene in the tank to mix it up. And I had a tarp over the car to keep the heat in. good luck...

__________________
71 220D 169K wrecked
83 240D 118K sweet 4 speed
91 350SDL (one of the 60% good engines) 156K
84 300d (loaner to my sister) 189K
79 300SD (partswagen)
86 420SEL partswagen
70 220d (partswagen)
68 280s GASSER!!! under construction now
85 300sd 310K miles winter beater car retired
93 300d 2.5 turbo 168K wife's car
83 280SL euro 5 speed 155K
69 250S newest project 54K