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The WD-40 COMPANY 10138 is a multi-purpose oil formulated for lubrication, corrosion protection, and general maintenance tasks across a wide range of trade and facility applications. Sold in an 8 oz bottle, it delivers a lightweight oil suitable for reducing friction on metal-to-metal contact points, loosening stiff mechanisms, and protecting surfaces from rust and moisture. Licensed tradespeople and maintenance technicians keep this type of oil on hand for quick-turn service calls where a reliable, general-purpose lubricant is needed without the overhead of specialty products.
This multi-purpose oil is used across residential and light commercial settings. Common applications include lubricating hinges, cables, chains, sprockets, linkages, and exposed metal components on HVAC equipment, plumbing fixtures, and electrical enclosure hardware. It is well-suited for preventive maintenance routines where a single oil product needs to handle varied lubrication tasks in one visit.
Designed as a general-purpose lubricating oil suitable for use on metal components across HVAC, plumbing, electrical, and general mechanical maintenance applications.
Applied by licensed technicians and maintenance professionals during routine service or repair. Before lubricating components on powered equipment, de-energize the unit and follow applicable lockout/tagout procedures. Apply sparingly to avoid attracting debris or contaminating adjacent surfaces such as belts, gaskets, or electrical contacts. Wipe away any excess oil after application.
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