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Red Bull's fuel supplier targets Singapore GP update

Red Bull's fuel supplier ExxonMobil is hoping to bring an upgrade to the Singapore GP as the team bids to improve performance on a circuit that suits its car.

 Daniel Ricciardo, Red Bull Racing RB13

Red Bull has struggled to compete with Mercedes and Ferrari on outright pace this season, with the outfit feeling its Renault engine has held it back both in terms of power and reliability.

But with Singapore one of a handful of tracks that has the low-speed characteristics that will suit Red Bull's car, a fuel upgrade would prove timely.

"We are aiming to introduce a new fuel in Singapore," ExxonMobil Global Motorsport Technology Manager David Tsurusaki told Motorsport.com. "We've had that planned since right up until shutdown."

Should the new fuel be introduced, Red Bull does not anticipate introducing fresh engines for the race, particularly as both Max Verstappen and Daniel Ricciardo are set for changes in Italy.

ExxonMobil joined Red Bull for 2017, after ending a long-term partnership with McLaren, and introduced a new fuel ahead of the season.

When asked how much that was worth, Red Bull chief engineer Paul Monaghan said: "At an engine sensitive circuit, a tenth, at an estimate.

"If you're at Monaco, it's slightly less, if you're at Spa, it's a bit more. They moved us up at least a grid slot at most circuits.

"We have an improvement with the oil during the year, that was another five or six hundredths depending on where you are."

ExxonMobil had planned to introduce a fuel upgrade at the British Grand Prix, but it was decided to hold off on that and focus on the next step for Singapore.

The Singapore upgrade will be the last of the season, with ExxonMobil now having turned its attention to next season.

"Our direction now is waiting for the components of the next engine, so we can do single cylinder testing," said Tsurusaki.

"For this season, we're out of time to validate and approve so our focus is waiting for the new single cylinder engine and the parts to be built.

"We have four fuels ready that we think are next step improvements. We have some technology we want to test, hopefully by the end of the year, so yes, there will definitely be fuel upgrades for 2018."

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