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Ultra-low Friction Diamond-like Carbon (DLC)


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Nano-technology based ultra-low friction technology

Nissan has substantially reduced friction between engine parts by developing the first technology in the world to combine a hydrogen-free diamond-like carbon (DLC)*1 coating with special oil.

*1 DLC (diamond-like carbon): A hard film made of carbon which has diamond-like properties. It has superior
abrasion resistance and a low friction coefficient.

Energy is lost due to friction that arises between the hundreds of parts that comprise an engine. This ultra-low friction technology uses nanotechnology in order to reduce friction.

Reduces friction by approximately 40% compared to conventional engines, by forming an ultra-low friction film of nanometer*2 level thickness on top of the hydrogen-free DLC coating.

*2 One hundred millionth of a meter
Nano-technology based ultra-low friction technology

How it works

Use of a hydrogen-free DLC coating improves binding with the engine oil and results in the formation of a firm ultra-low friction film when special oil additives are added.
It is now possible to reduce overall engine friction by 25% by applying the technology to the parts shown below.