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The Secret to Smooth Locks: How (and Why) to Lubricate Your Locks Like a Pro

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29.01.2025

Regular lock maintenance is essential to prevent key jamming or lock failure. Proper lubrication reduces wear and tear, ensures smooth operation, and extends the lifespan of your locks. A well-lubricated lock decreases the risk of your key getting stuck or breaking inside the lock—an inconvenient and costly problem. At MR-KEY, we understand the importance of well-maintained locks and want to help you keep yours in top condition.

 

How Often Should You Lubricate Your Locks?

 

For most locks, lubricating them every three to six months is sufficient. However, locks exposed to extreme weather conditions—such as those on towbars, roof racks, or outdoor gates—require more frequent maintenance. Rain, dust, and freezing temperatures can cause internal components to stick, making it difficult to insert or turn the key. If you notice resistance when using a lock, it’s time for lubrication.

 

What Lubricant Should You Use for Locks?

 

Choosing the right lubricant is crucial for long-term lock performance. Here are the best options:

• Teflon-based (PTFE) spray – Forms a protective film inside the lock, reducing friction and repelling dust buildup.

• Dry silicone spray – Excellent for outdoor locks as it resists moisture without attracting dirt.

• WD-40 Specialist Dry PTFE or White Lithium Grease – Unlike regular WD-40, these provide long-lasting lubrication and protection against corrosion.

• Graphite powder – A great choice for older locks but should not be used if there’s oil residue inside the lock.

 

While WD-40 Multi-Use is a quick fix for stuck locks, it is primarily a cleaner rather than a long-term lubricant. If used, follow up with a dry lubricant to prevent dirt accumulation inside the lock.

 

How to Lubricate a Lock

 

If your lock is functioning properly but feels slightly stiff, follow these steps:

1. Clean the Lock – Insert and remove the key a few times to dislodge debris, wiping it clean each time.

2. Apply the Lubricant – Insert the spray straw into the keyhole and apply two short bursts of lubricant.

3. Work the Lock – Insert and turn the key multiple times to distribute the lubricant inside.

4. Wipe Excess Lubricant – Remove any residue from the key and lock exterior to prevent dirt buildup.

 

For graphite powder, follow the manufacturer’s specific instructions, as overapplication can lead to clumping inside the lock.

 

Special Care for Towbar and Roof Rack Locks

 

Locks on towbars and roof racks are exposed to harsher conditions than typical door locks. To keep them in good shape:

• Regularly inspect them for stiffness or corrosion.

• Apply dry silicone spray or PTFE lubricant for lasting protection.

• If the lock is exposed to frequent moisture, white lithium grease offers superior water resistance.

 

Lock It in: The Key to Long-Lasting Security

 

Regular lock maintenance is a small effort that prevents big problems. By keeping your locks clean and properly lubricated—especially those exposed to the elements—you can avoid costly repairs and ensure they function smoothly for years.

 

For high-quality lock maintenance products, visit MR-KEY and keep your locks in perfect working condition. A little maintenance goes a long way in ensuring security and peace of mind!

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AGWS (an auto insurer) advises against using a cloth or wipe that’s already been on the dashboard or door panels – it can transfer grit and actually scratch the display Detail with precision If dirt or fingerprints linger, dampen the cloth with plain water or a gentle, screen-safe cleaner and buff in small circles. For stubborn spots, a second dry pass with the microfiber cloth will remove streaks. Wipe smudges away with a soft cloth – spraying cleaner on the cloth, not on the screen . Clean your screen each time you wash the car, or whenever you notice foggy patches. In fact, one test found that many “interior detailer” sprays (like Chemical Guys or Meguiar’s) can work just as well as specialized screen cleaners if they’re labeled safe for screens. Reduce Sunlight Glare Glare is one of the biggest complaints with modern car touchscreens. It makes maps hard to read, increases eye strain, and leads to drivers pressing harder on the display—over time, this causes wear and visible marks. To reduce glare: Install a matte hydrogel screen protector Adjust the display’s brightness and contrast Avoid cleaning with shiny or oily cloths Park with the dashboard away from intense sunlight when possible Hydrogel films help significantly because they diffuse harsh reflections without dulling the screen. Prevent Fingerprints and Smudges Touchscreens are fingerprint magnets. Oils from your hands quickly accumulate on the surface, especially on climate controls or zoom gestures. Solutions that actually work: Oleophobic coatings (built into many hydrogel protectors) Regular microfiber wipe-downs Avoid touching the screen with sunscreen or lotion on your hands Use voice commands for common actions when possible Drivers notice a big difference after installing a car navi screen protector—much fewer smudges and much easier cleaning. Protect the Screen During Everyday Use Small habits reduce long-term wear: Remove rings before using the touchscreen Don’t store hard objects (keys, coins) near the display Keep dust off the dashboard Avoid pressing with fingernails Use steering-wheel controls when possible Tiny scratches add up, especially on softer automotive materials. FAQ What is the best way to protect a car navigation screen? Installing a car-specific hydrogel screen protector provides the best protection against scratches, glare and fingerprints. Do hydrogel protectors really self-heal? Yes. The top layer softens slightly with heat and pressure, allowing micro-scratches to fade within minutes. Do these protectors affect touch sensitivity? No. Hydrogel films are extremely thin and designed to preserve the original touchscreen response. Can I install a screen protector myself? Hydrogel films are easy to install because they are flexible and bubble-resistant. Most people complete the installation in minutes. Will a protector reduce screen brightness? A high-quality hydrogel film maintains screen clarity while reducing harsh glare. Do car manufacturers recommend screen protectors? Many dealerships now advise using some form of screen protection due to rising replacement costs and increasing touchscreen sizes. Which Cars Benefit Most Some car brands benefit disproportionately from hydrogel screen protection — especially large-format touchscreens in premium models. If you want the full breakdown of the top models for 2025–2026, see our detailed guide on which cars benefit most from hydrogel navigation protection . To protect your own car’s screen from scratches, glare and fingerprints, visit our shop at mr-key.com . Related Guides How to Install a Hydrogel Navigation Screen Protector Which Cars Benefit Most From Hydrogel Navigation Protection? (2026 Overview) Hydrogel vs Tempered Glass Navigation Protectors Comparison

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