Listen to this article But with it emerging from investigations that the problems were not linked to standard supplied parts, there remains some questions about what really happened inside the RB18s. It quickly became apparent that the power units of both men were starved of fuel, despite there being plenty of ExxonMobil’s finest E10 in their respective tanks. In other words, something in the fuel system of the RB18 had failed and was not picking up the last few litres that were supposed to get the cars to the flag. The intriguing part of the story was that F1 fuel systems are now comprised of elements provided by the team, by the power unit manufacturer, and also by third parties who won FIA tenders to supply standard components to the whole grid – notably two types of fuel pump. Thus th …