Renault chairman Carlos Ghosn says the French manufacturer would consider adding to its current F1 engine supply - but not if it was a move detrimental to its existing deal with customer teams, and most notably, with champions Red Bull.

Red Bull, Lotus, Williams and Caterham all use Renault engines - with the first three all taking victories this season and Red Bull clinching both titles for the third year in a row.

Quoted by ESPNF1, Ghosn said Renault was open to supplying more teams if the regulations allowed but insisted it would only happen if it wouldn't have an impact on existing deals.

"We will provide as many teams as is allowed by the rules - because there are some rules and we will follow the rules - but the technology is not limited to just some teams," he said. "We are ready to offer our technology to more teams, but on the condition that we do not dilute the attention on the teams that are winning.

"For us preserving a very strong technical support for Red Bull is a priority. We want to make sure that we are always on the teams that wins and which can compete. At the same time we are ready to provide the technology for other teams."

Ghosn added that the title sponsorship of Red Bull by the Renault-Nissan owned Infiniti brand was a further indication of its support for F1.

"As long as it makes sense for us, we will continue [in F1]," he said. "The Renault-Nissan alliance is committed to Formula One through the very old commitment of Renault, which has been in Formula One for so many years and won so many titles, but also now with Infiniti coming and supporting one specific team and working with one specific team to make sure [we are] bringing the alliance to the forefront of racing."