ATIEL & UEIL Joint Sustainability Committee 10.2 Filled-for-Life vs. Total Loss Lubrication
Filled-for-life lubricants are designed to last for the entire life of the equipment they lubricate. Examples of filled for life applications include smaller mechanical systems such as handheld tools or home appliances, but also applications such as shock absorbers, actuators, sealed bearings, electronics, switches and more. These uses typically consist of mechanical components that use small but still significant amounts of lubricants that cannot easily or practically be replaced. An extreme example of filled-for-life applications is space exploration.
Filled-for-life lubricants typically require less frequent or no replacement but still pose disposal challenges at the end of their life. As these lubricants tend to be contaminated with dirt, water, and particles, they require special handling. Efforts to extend the life of the lubricant through regular maintenance and monitoring. In many cases the component life will depend on the life of the lubricant as well as the compatibility with the component elements. The use of lubricants with a longer service life or the selection of the correct lubricant for the application will reduce the amount of waste generated not just from the lubricant side but also of the lubricated component ensuring an overall more sustainable solution for the user
Typically, the lubricant will be disposed as part of the component. In such cases the EoL route will be the same as that of the component so for example steel bearings will end up in a steel mill and the lubricant will be incinerated. In the case of polymer components (plastics) the lubricant will be disposed of as a byproduct of the PCR plastic processing or in some cases will be incorporated into the recycled
material.Considering this EoL paths it is important to note that in the case of Fill-for-life applications it is important for the lubricant formulator to work closely with the OEMs to ensure that the spent lubricant will have a minimal effect on environmental and human health.
10.3 Lubricant Applications
This section provides specific strategies for managing lubricants in the applications mentioned, focusing on extending service life and minimizing end-of-life waste. By using monitoring, filtration, and maintenance practices, these tailored recommendations help optimize lubricant use and disposal for each product type.
10.3.1 Automotive and Industrial Oils
• For applications like engine oils and industrial oils, implementing oil drain intervals based on manufacturers' recommendations can extend the life of lubricants and reduce the frequency of EoL disposal.
• Oil filtration systems should be incorporated into equipment to remove contaminants and extend oil life. Recycled oils can be used in non-critical systems after proper re- refining processes.
• Establish oil change tracking to monitor oil age, usage, and contamination levels, ensuring timely replacement and reducing waste.
Version 11.06.2025 © ATIEL and UEIL Lubricants & Greases End of Life, Sustainable Best Practices
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