Songnox® L570 is a liquid octylated/butylated diphenylamine for lubricants and has a high nitrogen content. Songnox L570 effectively controls a lubricants viscosity increase due to oxidation. It also provides excellent protection against thermo-oxidative degradation of lubricating oils. Applications for Songnox L570 include mineral oil-based industrial lubricants, synthetic industrial lubricants, greases and engine oils. This product is approved by the NSF/FDA for use in blending food grade lubricants with incidental food contact, at a level not to exceed 0.5% by weight.