Oscar Piastri of McLaren (front) and Max Verstapen of Red Bull Racing, during the Sprint Race in Brazil | Getty
Red Bull has accused several of its competitors, including McLaren and Ferrari, of playing tricks with the tires under Parc Ferme rules. The Austrian team has slipped behind its two direct rivals this season in performance and race pace since the resumption after the summer break.
The reigning world champion team has not won a race this season since late June when Max Verstappen secured a hard-fought win beating out Lando Norris. Since the summer break, Ferrari and McLaren have shared the wins and overtaken the Milton Keynes-based outfit.
As per a report in The Race, Red Bull has claimed that McLaren and Ferrari have been adding water or another liquid to the tires to keep them cool and help with tire degradation during races. They believe a small amount, such as 50g, of fluid was being transferred to the rims to help them cool.
