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AMSOIL Grease
Helps solve problems associated with leaky gearboxes and difficult-to-service applications in commercial and fleet markets. Primarily used in grease-filled cases where conventional greases do not provide adequate lubricant life or protection.
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| Product code | Package size | Unit of measure |
|---|---|---|
| GSF35-EA | 35 lb. Pail | Each |
AMSOIL Synthetic EP #00 Grease is a semi-fluid, calcium-sulfonate-thickened synthetic grease built on a high-viscosity ISO 460 base oil. The NLGI #00 consistency is engineered for centralized lubrication systems, gear-filled cases, and heavy-duty fleet equipment that need a grease soft enough to flow through long supply lines but strong enough to hold a film under shock load.
Calcium-sulfonate complex thickeners deliver inherent extreme-pressure performance, structural stability after water contamination, and rust protection without the heavy sulfur-phosphorus loading older lithium chemistries depend on. Synthetic EP #00 Grease passes the ASTM D1743 corrosion-prevention test, the standard rust check for service greases used in wheel bearings and gearboxes exposed to humidity, washdown, and condensate.
The smooth, tan-colored grease holds shape in housings and on shedding surfaces while still flowing under pump pressure, which keeps gearboxes and seal cavities full instead of channeling away from the contact zone.
Synthetic EP #00 Grease carries a four-ball EP weld load of 250 kg under ASTM D2596 and a four-ball wear scar of 0.46 mm under ASTM D2266. Those numbers describe how the film behaves when boundary conditions take over: when a bull-and-pinion gear in a header gearbox or a heavily loaded fifth-wheel bearing pushes the lubricant past its hydrodynamic regime, the extreme-pressure additives plate onto the metal and keep asperities apart instead of allowing welding, scuffing, and pitting.
The typical service range spans -40°C to 177°C (-40°F to 350°F), giving operators one grease for winter centralized systems and summer ambient gearbox duty. Worked penetration of 410 (ASTM D217, 60 strokes) places the consistency in the soft end of NLGI #00, which is the property that lets the grease move through long supply lines at cold ambient temperatures without packing off pumps or starving downstream injectors.
The dropping point under ASTM D2265 is greater than 282°C (greater than 397°F), well above the structural-failure threshold of most lithium soap greases. A high dropping point is the headroom that prevents thickener breakdown at hot spots on truck wheel-end bearings, kiln-car wheel hubs, and gear drives that run near their thermal limits.
Synthetic EP #00 Grease is the primary type of grease recommended for truck wheel hubs in TMC Recommended Practice RP 631B, issued by the Technology and Maintenance Council of the American Trucking Association. It is also formulated for centralized lubrication systems on commercial and fleet equipment, particularly at low ambient temperatures where conventional greases stall in supply lines.
Synthetic EP #00 Grease is built for grease-filled gear cases and auto-lube systems where leakage and cold-weather pumpability rule out heavier NLGI grades. Match the application against the equipment manufacturer's NLGI consistency requirement before relubricating; consistency mismatch causes more centralized-system failures than additive choice.
When converting a system from a different chemistry, purge the old grease where possible or flush with a liberal volume of Synthetic EP #00 Grease while the mechanism is running, then monitor the system for any inconsistencies. The formula is compatible with many other types of grease, but field compatibility in tight-tolerance auto-lube systems is best confirmed by running a flush cycle and checking line pressure and discharge volume rather than relying on bench compatibility alone.
| Property | Value |
|---|---|
| NLGI Grade | #00 |
| Thickener | Calcium Sulfonate |
| Penetration, Worked 60 Strokes (ASTM D217) | 410 |
| Dropping Point (ASTM D2265) | Greater than 282°C (greater than 397°F) |
| Base Oil Viscosity at 40°C, cSt | 460 |
| Corrosion Prevention (ASTM D1743) | Pass |
| Four-Ball EP Weld Load, kg (ASTM D2596) | 250 |
| Four-Ball Wear, mm (ASTM D2266) | 0.46 |
| Color | Tan |
| Texture | Smooth |
| Typical Service Range | -40°C (-40°F) to 177°C (350°F) |
Synthetic EP #00 Grease is available in the 35-lb. pail and is backed by the AMSOIL Limited Liability Warranty. For NLGI grade selection across the broader chassis, wheel-bearing, and gear-grease lineup, review the AMSOIL grease guide; for application match by truck, trailer, or off-road equipment, To place an order, use Buy online.
NLGI #00 is a semi-fluid consistency grade, softer than a chassis #2 grease and slightly firmer than a fluid #000. The worked-penetration reading of 410 falls in the middle of the NLGI #00 band of 400 to 430. This consistency is designed for centralized lubrication systems and grease-filled gear cases where the lubricant must flow through long supply lines or fill an enclosed gearbox the way a heavy oil would, while still resisting leakage past seals.
Yes. The formula is recommended for centralized lubrication systems on trucks, trailers, off-road equipment, and industrial gear drives, with particular focus on low ambient temperatures where conventional #00 greases stall. Confirm that the equipment specifies an NLGI #00 grade before charging the reservoir, since most systems are sized for one consistency band.
The typical service range is -40°C to 177°C (-40°F to 350°F). The combination of synthetic base oil and calcium-sulfonate thickener supports cold-start pumpability at the low end and resists thickener breakdown at the upper end, with a dropping point above 282°C (397°F) under ASTM D2265.
The formula is compatible with many other types of grease. When changing grease, the equipment should be cleaned of the old grease where possible or flushed with a liberal volume of Synthetic EP #00 Grease while the mechanism is in operation. Monitor the system for any inconsistencies after the changeover and refer grease-compatibility questions to AMSOIL Technical Services.
Synthetic EP #00 Grease is the primary type of grease recommended for truck wheel hubs as outlined in TMC Recommended Practice RP 631B, issued by the Technology and Maintenance Council of the American Trucking Association. It is also recommended for truck trailer bearings and steering axles.
Store grease in a cool, dry area with temperatures above freezing but below 80°F. Keep the pail in the original container in an upright position and avoid direct sunlight. During long storage periods the grease may show a slight change in appearance; this is normal for calcium-sulfonate greases and does not indicate loss of performance.
Synthetic EP #00 Grease ships in a 35-lb. pail under product code GSF35-EA. The pail format suits fleet shops and centralized-lubrication reservoirs that draw from bulk; smaller cartridge or tube formats are not part of the GSF #00 lineup.