Red Bull motorsport advisor Helmut Marko has tried to calm the escalating row between Toro Rosso and Renault, saying they've always been "treated fairly".
Tension between Toro Rosso and Renault was ramped up this weekend in Brazil when Renault's managing director Cyril Abiteboul placed the blame for Toro Rosso's recent engine failures on the way in the which "our engine is operated in the Toro Rosso car."
Toro Rosso hit back, accusing Renault of undermining their efforts.
A statement from the team read: "We mustn’t forget that they are fighting with Toro Rosso for a better position in the Constructors’ championship, as suggested by Mr Abiteboul the situation may not be a coincidence, but it is certainly not due to STR’s car."
This led to reports that Renault could withhold engines from Toro Rosso in the final two races as they feel that the Formula 1 has breached their contract.
Nico Hülkenberg, Brazil GP, Saturday: “That was a good qualifying effort today and I think it was as good as it gets from the car here. We had some nice laps at the end of Q3 so I’m happy with that. Of course, I would have liked there to have been a little more rain to mix it up a bit, but that wasn’t to be. The name of the game tomorrow is to get to the chequered flag and to get points. We have reasonable race pace so it should be a good battle with Force India, McLaren and Williams; let’s see what happens.”
Toro Rosso team boss Franz Tost has come out saying he won't apologises and that it was Abiteboul who started all this "with his stupid interview."
But ahead of Sunday's Brazilian GP, Marko has tried to calm the growing tension.
"Over the last 10 years, many successful, we have been through every emotion with our current engine supplier," he said in a statement.
"As usual at the end of another long season, emotions are running high but it is a valued relationship and will remain so.
"There has never been any question that we have not been treated fairly and equitably by our engine suppliers.
"And that is still true today."
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