How to Clean Headlights with WD40

WD40 is a powerful and versatile tool, capable of many different uses. Its ability to penetrate and dissolve dirt, grease and other fluids make it ideal for cleaning car parts such as headlights.

This blog will cover how to clean headlights with WD40 and the advantages and disadvantages of using this product. Read on to get the most out of your WD40 cleaning process.

How to Clean Headlights with WD40

How to Clean Headlights with WD40

Using WD-40 to clean headlights is a simple and cost-effective method for helping you see better in the dark. Before you begin, you must ensure that the area is well-lit and that you dress appropriately in old clothing and safety gear, including gloves, eyeglasses, and a face mask.

Follow these steps to know how to clean headlights with WD40:

Step 1: Remove as Much Grime as Possible

Before applying any cleaner or lubricant to your headlights, it is essential to use a wet cloth to remove as much dirt, dust, and debris from the surface as possible. This is a crucial step as it will help to ensure the WD-40 can penetrate the surface and effectively remove the buildup.

Step 2: Apply the WD-40

Once you have wiped down the headlights’ surface, you are ready to apply the WD-40. Be sure to spray the product onto the affected area. Using a small paintbrush to apply the product to cover the entire surface area carefully may be helpful.

Step 3: Let the Product Soak In

Once the WD-40 has been applied to the headlights, it will soak into the surface for at least 10 minutes. This should give the product enough time to penetrate the surface and provide you with the best possible results.

Step 4: Remove Any Residue

After the 10 minutes have elapsed, it is time to clean the headlights of any excess residue. To do this, use a microfiber cloth along with a gentle cleaning solution to lightly scrub off any debris or dirt. Begin in a slow, circular motion and cover the entire surface area.

Step 5: Inspect the Surface

Once you have finished cleaning the surface, it is time to inspect your work. With the headlights now illuminated, carefully examine the surface for any clouds or residue. It may be helpful to use additional WD-40 to tackle stubborn spots if necessary.

See Also: How to Clean Car Windows

Why Does WD 40 Clean Headlights?

Unlike regular car products, WD-40 has a unique formulation that enables it to penetrate and safely clean all surfaces, from glass and plastic to metal and rubber. This makes it an ideal product to clean and restore your headlights — and it’s easy to use too.

So why is WD-40 such an effective cleaning agent for headlights? The answer lies in its ingredients. Rather than harsh chemicals, WD-40 attacks the dirt, stains and grime that sit on your headlights’ surface and removes them without damaging the headlight itself.

Will WD-40 Damage Headlights?

No. While WD-40 can clean and make headlights shine, it should not be used to clean the lenses, as it can break down the protective coating used to protect headlights from UV rays, which can cause them to yellow over time. When applied to the lens, it can give a temporary shine but also create a hazy, cloudy effect and impair visibility.

How Long Does WD 40 Last on Headlights?

Generally speaking, it’s safe to say that WD-40 will last on your car’s headlights for a good amount of time. A single application of the spray lubricant should last for several weeks, but this timeframe can be extended if you regularly give your headlights the occasional touch-up of WD-40. It’s important to remember that the effect isn’t permanent, so it’s a good idea to reapply it every couple of weeks.


Cleaning headlights with WD40 is a quick and effective way to remove built-up layers of grime and dirt. In a few simple steps and a few quick sprays of WD40, you can easily restore the clarity and brighten up your headlights in an instant.

With regular care and maintenance, WD40 is an ideal product to keep your headlights looking their best for many miles down the road. We hope now you know how to clean headlights with WD40.

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