Some teams have admitted they do not support Jean Todt's proposal to allow some in-season testing in Formula One next year.
The FIA president and former Ferrari boss said in Turkey that he will push for the teams to agree to change the severe test limitations, or simply impose the new regulations for the 2013 season.
"We are not interested in the idea of allowing private testing during the season," Red Bull team boss Christian Horner said bluntly, according to Autosprint's Italian-language website.
"We consider the current situation to be well balanced. To change it would raise costs, inevitably," added the Briton.
We must also safeguard the interest of the smaller teams
Ferrari president Luca di Montezemolo told CNN last week that F1 is the "only professional sport in the world" that does not allow "training".
"It is true that some teams favour more testing during the season," said McLaren and FOTA chief Martin Whitmarsh, "but we must also safeguard the interest of the smaller teams, who do not have great financial means."