Conoco Tacna HD is a premium quality, adhesive, extreme-pressure (EP) lithium complex grease developed for industrial use in heavily loaded, slow- to medium-speed bearings. It also is recommended for use as a chassis grease for heavy equipment. It is formulated to provide long service life in severe service applications.

Tacna HD is manufactured with high-quality, high-viscosity naphthenic base oils, a lithium complex soap thickener and a tackifier. It is fortified with extreme-pressure and antiwear additives, plus corrosion and oxidation inhibitors. It has excellent oxidation resistance, a high load-carrying capacity for excellent wear protection, and protects metal parts against rust and corrosion. It has excellent adhesion to bearing surfaces for improved retention and resistance to water washout, and has excellent resistance to structural breakdown even under severe operating conditions.