Red Bull is undecided over which strategy will be the fastest for the Formula 1 Sprint race at Interlagos.
After the team ran both the Hard and Soft tyres between Sergio Perez and Max Verstappen, the pair only ended second and fifth quickest respectively.
Red Bull Motorsport Director, Helmut Marko, believes the high temperatures which reached 51 degrees will be a key factor in determining how long the team can go on one set of tyres in the 24-lap Sprint.
"The temperatures have risen drastically. The faster tyre would probably be the Soft if you can keep it alive over the distance," he told ORF.
"I think it's going to be a very close decision between Medium and Soft."
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Red Bull tells Verstappen to take it easy with Magnussen
Despite setting the shock pole time and saying that he would go for the win, Kevin Magnussen is not seen as a threat to Red Bull.
Echoing the thoughts of Verstappen, when asked about the Haas driver Marko revealed that they have cautioned the Dutchman over making the move too quickly.
He added: “I don't believe the times he has set now, but he's a tough fighter.
"We told Max to overtake without taking any risks. Even if he stays behind him a bit longer, that's not a problem."
Video: How do F1 sprint races work?
It will be the third and final Formula 1 sprint race of the season in Brazil. We've put together a handy refresher to explain how the weekend differs slightly from the usual format.