Ferrari says its use of six turbochargers in just over three races is a strategic decision that it does not think will result in a grid penalty later in the season.
Under Formula One's current regulations, drivers incur grid penalties if they use more than four of certain power unit components during the course of the season. The turbocharger is one of those components and Ferrari started the Russian Grand Prix weekend by fitting a third turbocharger of the sesaon to each car, leaving just one new turbocharger per car for the rest of the year.
However, the previously-used turbochargers can still be used again if they are not damaged and Ferrari engine boss Luigi Fraboni stressed that the changes so far have all been precautionary to limit the chances of a failure early in the season.