Strategies include:

Regular Oil Analysis: Monitoring oil condition to make informed decisions about maintenance.
Effective Filtration and Purification: Removing contaminants to maintain oil integrity.
Temperature Control: Operating within recommended temperature ranges to reduce oxidation.
Additive Replenishment: Restoring depleted additives if appropriate.
Contamination Control: Preventing ingress of water and particulates.
Implementing these strategies can significantly extend oil service life, reducing costs and downtime.