WD-40 Original Formula Multi-Use Product 6-Pack & 1 Gallon - Smart

In this review the reviewer finds the WD-40 Original Formula pack and one-gallon refill best for users who need a reliable, multi-purpose lubricant and corrosion inhibitor. The bottom line: if you work on tools, machines, or electrical systems and need both a handy aerosol with a permanently attached Smart Straw and a larger container for soaking or bulk use, this combination delivers versatility and value. The review highlights the Smart Straw's spray-two-ways convenience and the gallon's utility for soaking parts or protecting larger jobs.

Key Features

• Smart Straw SPRAYS 2 WAYS: The permanently attached straw flips up for a precision stream and flips down for a regular spray, making targeted application quick and mess-free.
• Corrosion inhibitor: Formulated to shield metal surfaces from moisture and other corrosive elements, helping prevent rust on tools and equipment.
• Frees stuck parts: Penetrates to loosen rust-to-metal bonds and release stuck, frozen or rusted metal components for easier repair and maintenance.
• Removes grime and adhesives: Cuts through grease, gunk, tar, sap and sticker residue to clean surfaces before repair or painting.
• Drives out moisture: Quickly displaces moisture in electrical systems to reduce moisture-induced short circuits and restore function.
• Bulk one-gallon supply: The gallon size is useful for soaking parts, dipping tools and lubricating moving assemblies where frequent coverage is needed.

Who It's For

The kit suits home mechanics, workshops and light industrial users who want both convenient aerosol cans for precise sprays and a larger container for heavy-duty tasks. The Smart Straw cans are handy around the house and garage for quick loosening, cleaning and moisture displacement, while the one-gallon is aimed at shop environments where soaking or repeated application is required.

Those who need food-grade lubricants, specialty aerospace formulations, or odor-free indoor-safe products should look elsewhere; this original formula is best for general mechanical, electrical and maintenance use rather than niche or sensitive applications.

Pros & Cons

Pros

• Smart Straw design keeps the straw attached and offers both precision stream and regular spray for flexible application.
• Effective corrosion inhibitor that helps protect metal surfaces from moisture and rust.
• Versatile: frees stuck parts, removes adhesives and drives out moisture from electrical systems.
• One-gallon size provides economical bulk for soaking, dipping and frequent use in a shop.

Cons

• Original multi-use formula is not intended for food-contact surfaces or specialized lubrication requirements.
• Bulk gallon requires safe handling and storage compared with sealed aerosol cans.

Specifications

Product	Original Formula Multi-Use Product
Pack	12 oz aerosol cans, 6-pack with Smart Straw
Additional size	One gallon container for soaking and bulk use
Key functions	Lubricates, frees stuck parts, displaces moisture, inhibits corrosion
Smart Straw	Permanently attached straw that sprays two ways
Typical uses	Soaking, dipping, lubricating hinges, wheels, chains and electrical moisture removal

Our Verdict

The WD-40 Original Formula 6-pack with Smart Straw plus a one-gallon refill is a practical combination for DIYers and shops that need both precise aerosol applications and a bulk supply for soaking and repeated lubrication. It offers dependable corrosion protection and moisture displacement, making it good value for general maintenance and repair tasks.

Frequently Asked Questions

Can the Smart Straw be lost?
The Smart Straw is permanently attached and flips up for a precision stream or down for a regular spray to keep it handy.

Is the one-gallon suitable for soaking parts?
Yes, the gallon is intended for soaking and dipping tools and parts for heavy-duty loosening and protection.

Will this protect electrical systems?
WD-40 drives out moisture and dries electrical contacts quickly to help reduce moisture-induced short circuits.