Sep.30 (GMM) The FIA on Sunday promised to improve its method for advising teams of important rule changes.

Ferrari claimed after the Japanese grand prix that it was the only team that did not use extreme wet tyres for the start of the Japanese grand prix because it did not receive an email from the stewards.

The FIA said "all competitors" with the exception of Ferrari received the email at 12:37pm -- more than an hour before the race started.

"To avoid any recurrence of today's problem the agreed method of using electronic communications will continue to be used but in future will be backed up by the traditional method of written communication," F1's governing body said in a statement.

It also emerged late on Sunday that Toro Rosso has decided to appeal the stewards ruling that cost Tonio Liuzzi, who was found to have overtaken Adrian Sutil under a yellow flag, a point.