That led me to look at B100 diesel, which I assume is the damaging full bio diesel you're describing. Will that be a serious option soon? Does the fuel need to improve or will I need a different engine?Our 2011 Rapido is as good as new, so many years left in it yet. I'm presuming a less damaging full bio diesel will be developed and available through regular pumps eventually. E10 petrol and B10 bio diesel are now at the pumps which looks like the start of things