Additives for motor oils ADDO®: novel additive for engine oils: ADDO is based on a mixture of Diamonds and Graphite nanoparticles. Very fine particles of NanoDiamond, with size of only 6 nm polish the moving parts of an engine to mirror quality, leaving no defects and reducing friction and wear. NanoGraphite is working as a natural and an extremely efficient dry lubricant reducing the friction further (see also www.addo-oil.com) Your engine becomes more efficient, it uses less fuel and lives longer.