AMSOIL 100% SYNTHETIC HIGH-VISCOSITY LITHIUM-COMPLEX GREASE

AMSOIL Synthetic High-Viscosity Lithium-Complex Grease delivers heavy-duty bearing and chassis protection for industrial equipment, off-road machinery, and agricultural applications that operate under punishing loads, extreme temperatures, and constant exposure to the elements. Built on an ISO 320 synthetic base oil with a lithium-complex thickener, this NLGI #2 grease stays where you put it and keeps working long after conventional multi-purpose greases have broken down or washed away.

Heavy-duty bearings in construction equipment, farm implements like John Deere mowers and tractors, mining machinery, and off-road vehicles face a brutal combination of slow speeds, shock loading, water exposure, and temperature extremes. Standard multi-purpose greases often thin out under mechanical shear, wash out in wet conditions, or oxidize and harden at elevated temperatures. The result is premature bearing wear, unplanned downtime, and expensive repairs.

EXTREME-PRESSURE PROTECTION FOR SHOCK-LOADED BEARINGS
Slow-moving, heavily loaded bearings in equipment like excavators, skid steers, and agricultural implements are vulnerable to metal-to-metal contact under shock-loading conditions. AMSOIL High-Viscosity Synthetic Grease is formulated with EP additives and a high-viscosity synthetic base oil that produces a thick protective film between moving surfaces. In Four-Ball EP Weld Point testing (ASTM D2596), it achieved a weld point of 315 kg, and Four-Ball Wear testing (ASTM D2266) measured just 0.39 mm of wear scar diameter. That combination of load-carrying capacity and wear reduction translates directly to longer bearing life in demanding off-road and industrial service.

RESISTS WATER WASHOUT IN WET ENVIRONMENTS
Equipment operating outdoors, in washdown environments, or near water faces constant grease displacement. If the grease washes out, the bearing runs unprotected. AMSOIL High-Viscosity Synthetic Grease posted only 4.0% loss in ASTM D1264 water washout testing. Its cohesion and adhesion properties keep it locked in place on bearing surfaces even under direct water contact. For operators running equipment in rain, mud, or environments that require regular pressure washing, this means longer intervals between re-greasing and fewer opportunities for contaminant ingestion.

HIGH-TEMPERATURE STABILITY UP TO 400 DEGREES F
Bearings near engines, exhaust systems, kilns, or other heat sources can push grease beyond its thermal limits. When grease breaks down thermally, it loses viscosity, hardens, or separates, leaving bearings exposed. AMSOIL High-Viscosity Synthetic Grease handles continuous service temperatures up to 177°C (350°F) and intermittent service up to 204°C (400°F). Its dropping point of 267°C (513°F) per ASTM D2265 testing provides a wide margin of safety above normal operating temperatures. The synthetic base oil resists thermal and oxidative degradation, so the grease maintains its protective film even during sustained high-temperature operation.

SHEAR STABILITY AND ZERO OIL SEPARATION
Mechanical activity inside bearings can break down grease structure over time, thinning it out and reducing its ability to protect. AMSOIL High-Viscosity Synthetic Grease is shear stable, maintaining its NLGI #2 consistency and viscosity under continuous mechanical work. In ASTM D1742 oil separation testing, it recorded 0% weight loss, meaning the base oil stays locked within the thickener matrix during storage and service. The grease you apply is the grease that protects.

CORROSION AND RUST PREVENTION
Exposed metal surfaces in humid, wet, or salt-laden environments corrode quickly without proper protection. AMSOIL High-Viscosity Synthetic Grease earned a 1A rating in ASTM D4048 Copper Corrosion testing and a passing result in ASTM D1743 Rust Prevention testing. A robust additive package of corrosion and oxidation inhibitors protects bearing surfaces from rust formation and chemical degradation, even in harsh outdoor service.

SPECIFICATIONS AND COMPATIBILITY
AMSOIL High-Viscosity Lithium-Complex Synthetic Grease is an NLGI #2 grade with a smooth texture and light amber color. It is compatible with many other grease types, but when switching from a different grease, it is best practice to clean old grease from the equipment when possible or flush thoroughly with a liberal amount of AMSOIL grease while the mechanism is running. Monitor the system closely after any grease changeover.

APPLICATION NOTES
Wipe grease fittings clean before injecting grease to prevent contaminant ingestion. Maintain bearing housings one-third to one-half full. Over-greasing causes excessive heat buildup and can be as damaging as under-greasing. Supplement routine greasing by periodically cleaning and repacking housings with fresh grease on an established maintenance schedule.

Available in 14 oz. cartridges, 35 lb. pails, and 120 lb. kegs.