Renault Group said BP global lubricant business Castrol would supply dealers' service refill requirements from 1 January 2020.
The pair have done business since 2017 through a Formula 1 supply deal which continues.
A new Renault Castrol jointly branded product range will be sold to Renault dealers for service refills.
"Groupe Renault and Castrol, both leading brands with advanced technologies, will combine their expertise to continue delivering improved service to Renault customers," a statement said.
"This strong technical partnership in service-fill and Formula 1 will enable the partners to push technological boundaries both on and off the track. With Castrol, one of the world's leading lubricants brands, Groupe Renault will build a strong partnership that will enable Renault customers and dealers to enjoy the best service and products while contributing strongly to our Formula 1 ambitions.
"BP and Castrol are delivering advanced lubricants that can reduce emissions today and have the technology to develop breakthroughs for the transport of tomorrow. Groupe Renault and BP's strong and growing partnership will enable both companies to combine the excellent skills and knowledge across both organizations to explore the opportunities in this rapidly evolving market."

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