For many years now, Elf has been one of the premier brands operating within the lubricants industry, with involvement with some of the biggest motorsport associations in the world. As Elf approaches their 50-year partnership with Renault, it is the perfect time to have an in-depth look at one of their premium products Elf Evolution Full Tech FE 5W-30 . This innovative and high-performance engine oil is the latest in high-performance fuel economy lubricants that use Elf synthetic technology and is designed for lubricating light vehicle engines., specially designed to ensure compatibility with post-treatment systems.