Just must do it
No pictures for the General
What does the LO and TM say?
it still says GAA
http://www.milspecoilsandlubes.com/main/mil_spec_grease_oils_etc.asp
View attachment HMMWV lube LO 9-2320-280-12.pdf
The Army uses National Lubricating Grease Institute Number 2-consistency grease covered by military specification
(MILSPEC) MIL-PRF-10924G, Performance Specification, Grease, Automotive and Artillery (GAA), as the standard grease for all military vehicles, artillery and ground equipment operated worldwide under all conditions.
This specification was originally designed to meet extreme military field environments, and can be used in temperatures ranging from -65 to 356 degrees Fahrenheit. It has excellent storage stability, good shear and oxidation stability. It also has good anti-wear and load-carrying capacity characteristics, and saltwater corrosion properties. To meet a wide range of uses, the current grease’s formulation consists of synthetic oil thickened with an advanced lithium complex and additives with high biodegradability.
To improve its environmental properties, several BLGs were formulated with synthetic oils, an advanced lithium-complex thickener and additives. One BLG formulation was selected and, to validate its performance, field demonstrations were conducted in 2001 at Fort Hood, TX, and Fort Bliss, TX, over a 1-year period using military ground vehicles, including High Mobility Multipurpose Wheeled Vehicles (HMMWV), utility and 5-ton trucks, and construction equipment.
The BLG test results clearly showed more rapid biodegradability, which occurred within a 6-month period, compared to G-version grease, which showed extremely slow biodegradability for many years.
Testing revealed that BLG provided excellent field performance compared to the G-version grease. The testers observed no sign of biodegradation in the lubrication systems during operation, indicating that BLG products will only biodegrade under certain environmental conditions. To assess this experimental BLG, a field biodegradation test was conducted at the bioremediation site at Fort Hood. The BLG test results clearly showed more rapid biodegradability, which occurred within a 6-month period, compared to G-version grease, which showed extremely slow biodegradability for many years.
In 2008, the MILSPEC was revised to accept BLG as the GAA grease. The revised GAA specification, MIL-PRF-10924H, included an additional biodegradation test and a higher acceptance limit for load-carrying capacity than the MIL-PRF-10924G standard. As a result, BLG officially became a new “green” GAA military product.