HydraMaxx is designed to meet the specific needs of hydraulic systems and typically focus on anti-wear. 
Hydramaxx
Hydraulic oils contain specific additive formulas designed to meet the specific needs of hydraulic systems and typically focus on anti-wear (AW), rust and oxidation (RO) or multi-viscosity (MV) formulas. 
HydraMaxx is a balanced formula designed to blend with these oils to complement and enhance the protection of equipment under difficult performance requirements where the oil alone proves inadequate. Power transfer may still occur when using oil which has surpassed useful service life. When this occurs many of the key performance aspects of the oil are no longer functioning. 
HydraMaxx enhances: 
cold flow
viscosity index
water separation and unparalleled anti-wear
rust and corrosion protection
HydraMaxx also uses seal conditioning agents, reducing the long-term effects of heat exposure to elastomer seals and hydraulic hoses. HydraMaxx is compatible with mineral based (Group II + III) and synthetic-based polyalphaolefin and diester (Group IV) hydraulic oils. HydraMaxx is not recommended for use with water-based fluids, phosphate esters or polyglycol fluids. HydraMaxx: Use with hydraulic oils. 5% HydraMaxx to oil volume ratio is the recommended concentration for most applications. For extreme cold applications higher concentrations may be needed to obtain desired results.