Originally Posted by Lubehead

I agee with Penguin. In reference to Thunder 22's query.... go to DPChip pump info. All about diesel injection pumps, how they work, history and developments. where you will find reference to the following statement:

"Because of the extremely high fuel injection pressure, the fuel in the return line becomes very hot, and a fuel cooling system is used to cool the excess fuel before it is returned to the tank"

So if the total fuel capacity available is low, the bulk fuel temperature will rise in the tank evidently creating an issue that compromises fuel pump/distribution component life as far as a 6.6L Duramax goes.

This is not related to ABMW's issue I am sure, it just prompted my question to those in the know if BMW's are susceptible to damage or compromised fuel component life by running low on fuel as the 6.6L Duramax engine is.