Quote:
Originally Posted by andrewwynn
I can't speak for diesel but with gas in most of America, one of the few few few benefits of polluted gas (E10) for non corn farmers is that the alcohol absorbs the water and removes it.
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Yeah, water and petrol (and esp. E10 etc.) will "mix" but not so with diesel - there's no way to get them to mix and if water gets into the mechanical high pressure (HP) fuel pump, it will destroy the HP pump pretty quickly, galling the HP pump faces due to the low lubricity of water vs diesel.
The E53 3.0D has at two fuel filters and two electric fuel pumps before the HP pump so water getting into the system can render a vehicle useless (not cost-effective to repair).