Poor lubricant storage is one of the most overlooked causes of equipment failure in Indian industry. A lubricant that meets full specifications when it leaves the factory can be significantly degraded by the time it reaches the machine — if it was stored incorrectly. Contamination, water ingress, oxidation, and cross-contamination are all preventable with proper storage practices.
The Biggest Threat: Water Contamination
Water is the most common and most damaging contaminant in stored lubricants. Even small amounts of water (above 0.1%) can cause hydraulic pump cavitation, accelerate bearing corrosion, degrade additive packages, and promote microbial growth in certain oils. Outdoor drum storage is a major culprit — when drums are stored horizontally, rainwater collects around the bung (cap) and is drawn in as the drum breathes during temperature cycling. Always store drums vertically with the bung at the top, and ensure bungs are tightly sealed.
Temperature Effects on Stored Lubricants
Lubricants should ideally be stored at stable, moderate temperatures — between 10°C and 35°C for most products. In Indian summer conditions, outdoor storage in direct sunlight can raise drum temperatures to 60–70°C. This accelerates oil oxidation, can cause wax separation in some oils, and places stress on container seals. Where possible, lubricants should be stored in a covered, ventilated store. If outdoor storage is unavoidable, drums should be shaded and covered with reflective or insulating material.
Cross-Contamination Prevention
In many workshops and industrial stores, lubricants of different types are dispensed using the same funnels, nozzles, and pumps. Even small amounts of cross-contamination can cause problems — gear oil contaminating hydraulic oil can clog servo valves; a different grade of engine oil mixed with the correct grade changes viscosity and performance. Dedicate separate dispensing equipment to each lubricant type, and colour-code or clearly label all dispensing tools.
Drum Rotation: First In, First Out
All lubricants have a shelf life. Unopened drums of most lubricants maintain quality for 2–5 years when stored correctly. However, once opened, oxidation begins and the oil should be used within a reasonable timeframe. Implement FIFO (First In, First Out) stock management — always use older stock first. Mark drums with the date of receipt and opening date.
Grease Storage Specifics
Greases are particularly vulnerable to contamination because their thickener structure can trap and hold contaminants. Grease containers should always be kept sealed when not in use. Spatulas and dispensing tools used in grease containers must be clean and dry. Never mix different grease types — many thickeners (lithium, calcium, polyurea) are incompatible and the mixture can have significantly degraded performance.
📞 CONTACT & CTA
Lukeron Lubricants provides product storage guidance with all deliveries. Contact us: +91 73832 79438 | info@lukeronlubricants.com
