The moral of the story is... When your tank is on 1/2 empty, fill it up.
We ran our CRD down to zero once on a long trip. The place we planned on
pulling off had no diesel so we had to go to the next exit that was 30 miles away or so.
2007 WK 3.0L CRD, Quadradrive II, GDE EcoTune, DPF-Delete
4xGuard Front, Rear, Belly, & Side Rails, Factory Skids
EHM MOD, Garmin Mechanic EcoHD, K&N Filter (Deleted)
I let mine run dry... just to see how far down the fuel gauge would go. And to see how much useable fuel there is in the tank.
after I hit '0 miles to empty', the fuel gauge went down just a bit (probably 20 miles worth of driving), then stopped moving altogether. I went on until the engine stopped from lack of fuel.
Took 20.4 gallons to fill the tank. I wish the fuel gauge would keep dropping until the tank is empty. There's probably over 2 gallons left in the tank when my gauge stops moving.
Next I'll track how many gallons it takes to fill once '0 miles' is displayed... if it's the same amount, that would let me know exactly how much fuel I have left (since I know I can burn 20.4 gallons with a full tank).