3-IN-ONE 3-IN-ONE 10038 Multi-Purpose Oil 8 oz (Pack of 2)
3-IN-ONE Multi-Purpose Oil, 8 OZ 1-Pack Modern Single Bottle User Manual
Brand: 3-IN-ONE | Model: 10038
Introduction
Since 1894, 3-IN-ONE Multi-Purpose Oil has been a trusted tool used by professional tradesmen and do-it-yourselfers. This versatile drip oil lubricates, cleans, and protects against rust and corrosion, making it an essential item for various applications around the home, shop, and garage.

Figure 1: Front view of the 3-IN-ONE Multi-Purpose Oil bottle.
Setup
Before first use, prepare the Marksman Twist Spout for application:
- Locate the tip of the spout.
- Using scissors, carefully cut the tip of the spout just above the ring. This creates the opening for oil dispensing.
- After use, utilize the attached red cap for re-closure to prevent spills and maintain product integrity.

Figure 2: Back of the bottle with instructions for opening the spout.

Figure 3: Close-up of the Marksman Twist Spout.
Operating Instructions
3-IN-ONE Multi-Purpose Oil is designed for precise and controlled application without overspray or splatter. Its light formula is ideal for various moving parts and surfaces:
- Lubrication: Apply to wheels, casters, sliding doors, chains, and external parts of small motors to ensure smooth operation.
- Rust Prevention: Formulated to protect metal surfaces against rust and corrosion.
- Cleaning: Helps clean surfaces by loosening dirt and grime.
- Penetration: Its thin viscosity allows it to penetrate deep into tight spaces, such as nuts and bolts, to loosen seized parts.
The squeeze bottle design provides excellent control over the amount of lubricant dispensed, making it suitable for intricate tasks.

Figure 4: Applying the oil with precision.
Official Product Video: Multi-Purpose Use
Video 1: This official video from WD-40 Company demonstrates the multi-purpose applications of 3-IN-ONE oil, including its use for lubrication and protection.
Maintenance
Regular application of 3-IN-ONE Multi-Purpose Oil helps maintain the longevity and performance of your tools and equipment. For optimal rust prevention, ensure a light coating is applied to exposed metal surfaces, especially after use or cleaning.
The updated packaging includes a convenient fill level indicator strip, allowing you to easily monitor the remaining oil and know when it's time for a refill or replacement.

Figure 5: Fill level indicator on the side of the bottle.
Troubleshooting
If rust or squeaking persists after application, ensure the surface was clean and dry before applying the oil. Reapply a small amount, allowing it to penetrate. For heavily rusted or seized components, multiple applications over several hours may be necessary. If issues continue, professional assistance may be required for complex mechanical problems.
Specifications
| Feature | Detail |
|---|---|
| Material | Plastic |
| Brand | 3-IN-ONE |
| Package Information | Bottle |
| Liquid Volume | 228.16 Milliliters (8 Ounces) |
| Item Weight | 8 Ounces |
| Recommended Uses | Wheels, Casters, Sliding Doors, Chains, Power Tools |
| Manufacturer | WD-40 |
| Model Number | 10038 |
| Product Dimensions | 2.87 x 1.5 x 6 inches |
| UPC | 079567100386 |
Safety Information
DANGER:
- Contains petroleum distillates.
- Avoid frequent or prolonged contact with skin.
- If swallowed, DO NOT induce vomiting. Call a physician immediately.
- Keep out of reach of children.
- Combustible.
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