Fluids for Extreme Pressure and Wear Applications

An additive composition for a lubricant or functional fluid, comprising:

• an anti-wear agent in a percentage, w/w of the additive composition, of from about 10% to about 30%, the anti-wear component characterized by an acid value of at least about 1 mg KOH/g;
• an aryl amine antioxidant agent, in a percentage, w/w of the additive composition, of from about 10% to about 30%;
• an aryl amine antioxidant agent, in a percentage, w/w of the additive composition, of from about 10% to about 30%;
• an alkyl or alkenyl succinic acid ester anti-rust agent;
• and
• a tolyl triazole derivative metal deactivator agent.

A method of operating an apparatus using a fluid composition, comprising placing a plurality of components of the apparatus in fluid communication with the fluid composition, the fluid composition comprising:

• a polyalphaolefin component in a percentage, w/w of the composition, of from about 95% to about 99.5%;
• and
• an additive component, comprising:
• an anti-wear agent in a percentage, w/w of the composition, of from about 0.1% to about 2%, the anti-wear component characterized by an acid value of at least about 1 mg KOH/g;
• an aryl amine antioxidant agent;
• an anti-rust agent;
• and
• a metal deactivator agent;
• the composition being characterized by:
• a kinematic viscosity at 100° C. of at least about 5 centiStokes;
• a viscosity index of at least about 80;
• and
• an acid value in mg KOH/g of between about 0.1 and about 1.