The FIA declared that a figure of up to 102.9 was permitted under the rules, and that Brabham had not exceeded this limit.
Ob koncu sezone 1983 sta tako Renault kot tudi Ferrari, ki sta bila premagana v dirkaškem prvenstvu s strani Piqueta, protestirala, da je bil indeks goriva "RON" pri Brabhamu nad dovoljeno mejo 102.