I’ve an old style focus with the 115PS TDCI duratorq engine, and regularly run it down until the light comes on – in some cases I’ve filled up, and with calculations have worked out there was less of a litre of usable fuel in the tank…. No problems at all – where I live is fairly hilly, and not had a problem with engine even spluttering…. only spluttering was from me, hoping to get to the pump in time!!!

Dunno if it is mondeo fault in particular rather than a fault with the engine. Perhaps I am setting myself up for a problem too!!

Regards,
Scotty