N A RECENT REAL-WORLD FIELD STUDY, AMSOIL Synthetic Polymeric Truck,
Chassis and Equipment Grease (GPTR2) reduced grease consumption and
demonstrated superior pound-out and washout resistance compared to a
competing synthetic EP grease. The fi eld study subjected both greases to
identical operating and weather conditions in a 2003 front-loading Autocar
Ignitor refuse hauler. During the 56-day study, the refuse hauler was placed
into daily service unloading over 100 commercial dumpsters during a 12-hour
shift. The vehicle routinely encountered adverse weather and
extreme-pressure environments that can pound-out and washout inferior
greases, causing corrosion and wear, which provided the ideal environment
for testing greases.
Test Parameters
Synthetic Polymeric Truck, Chassis and Equipment Grease was installed in one
side of the vehicle using a manual pistol- grip style 6,000 psi grease gun,
while the competing grease was installed in the identical components on the
opposite side. After operating the vehicle to ensure complete removal of the
old grease, the refuse hauler underwent a series of three re-greasings
throughout the fi eld study. The number of pumps required to properly
lubricate the 19 grease points on each side of the vehicle was recorded. A
visual inspection of each grease point was also conducted to record abnormal
conditions, including excessive grease consumption and the presence of
water.
Results – Grease Consumption
The chart displays the number of grease gun pumps required to properly
lubricate each side of the refuse hauler. Results from all three
re-greasings show reduced consumption using AMSOIL Synthetic Polymeric
Truck, Chassis and Equipment Grease, with its extended service capabilities
becoming more evident as the fi eld study progressed. Overall, three 14-oz.
cartridges of the AMSOIL product were required, while 4.5 14-oz. cartridges
of the competing grease were required. Despite operating in identical
conditions, the advanced chemistry of AMSOIL Synthetic Polymeric Grease
allowed it to remain intact better, requiring less grease to provide
increased protection.
Results – Washout/Pound-Out
Throughout a 12-hour shift, the hoist, lift arms, king pins and other
components responsible for raising heavily loaded dumpsters repeatedly
encounter extreme pressures that can poundout inferior greases. Without
grease in place acting as a seal, water and other contaminants can penetrate
the area, causing corrosion and wear. In addition, metal-to-metal contact
results, ultimately causing component failure.
AMSOIL Synthetic Polymeric Truck, Chassis and Equipment Grease resisted
pound-out to stay in place longer than the competing grease, forming an
effective seal to repel water and other contaminants. In multiple instances,
visual inspections found water between surfaces greased with the competing
product. The side of the vehicle lubricated with AMSOIL, however, resisted
washout due to the product’s superior adhesion and cohesion properties
and did not allow water to enter greased areas.
Proven Performance
Test results achieved in real-world, severe-service
operation demonstrate the superiority of AMSOIL Synthetic Polymeric Truck,
Chassis and Equipment Grease. It remains intact for maximum protection and
clings tenaciously to metal surfaces, helping keep water and other corrosive
contaminants from penetrating greasable components. It can extend service
intervals or require less grease when re-greasing, saving fleets money.
