But with an improved relationship with engine supplier Renault and an impressive rate of development on its RB12 chassis, Red Bull has emerged as pace-setter Mercedes' closest challenger as this season has passed.
"Everything we put on the car, maybe our feedback is helping as well, but all the updates seem to be going in the right direction," Ricciardo said.
"Since I've been with Red Bull it's been the best year for that.
"A lot of things we've used or put on the car have worked."
Ricciardo secured his first win since August 2014 last Sunday in Malaysia, with team-mate Max Verstappen finishing second to secure Red Bull's first one-two finish since the 2013 Brazilian Grand Prix.
Red Bull moved further clear of Ferrari in the constructors' championship, extending its advantage to 46 points with five races to go.
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