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Renault director of operations Remi Taffin says the power unit supplier was pleased to have all four of its cars reach the chequered flag for only the second time in 2015 at the Spanish Grand Prix.
Renault has endured a problematic start to the current campaign but at the Circuit de Barcelona-Catalunya both Red Bull and Toro Rosso drivers made it to the line, with only Max Verstappen missing out on points.
"This weekend we achieved our minimum aim of finishing the Grand Prix with all four cars," said Taffin.
"We were less conservative in qualifying and showed that the potential is still there, but we took a safe approach in the race. We now need to maintain this platform and build on it for the next races.
"In parallel we are aware we need to raise our game in performance but we need to do this without taking any risks with the reliability."
Managing director Cyril Abiteboul says Renault had to limit mileage to a certain extent across the weekend.
"We needed to eliminate the issues we saw and get reliability under control before we could introduce any new specification parts," he said.
"We had to limit mileage in some cases until we had all the necessary information, which is never ideal, but sometimes you have to take a short term hit for long term gain."
