Recent research has shown that adding nanoparticles to liquids significantly enhances some of their properties. "Nanofluids" have been synthesised using carbon nanotubes and various metallic,oxide and ceramic nanoparticles. Adding nanoparticles to lubricants enhances their ability to conduct heat, lubricate and protect from wear-and-tear. These are famous properties in the automotive industry as better lubricants result in reduced engine wear, or lower noise,and better and longer engine performance.
Source: phys.org