Heating oil in common rail diesel

[FordPrefect56]

Someone I know (not me cos that's illegal obviously) is trying 28 second heating oil at 36p a litre with a smidge of engine oil mixed in to lubricate the pump and injectors in a Kia Rio Crdi. Running sweet as a nut so far. Any other experiences?

[FordPrefect56]

With common rail diesels and kerosene I'm sure lubricity is the main factor to get right. I've looked at everything I can find on Google but there are no definite answers. I found a fascinating document from the US military when they were trying to get a single fuel source to work in everything, planes, tanks, trucks etc. Jet fuel is near as dammit kerosene and it did wear out diesel pumps but the reasons were complex. The zinc in engine oil would appear to clag injectors up eventually which is a pain if that's used to aid lubricity. A vegetable oil would be nice to try but that's expensive these days.