11 Amazing WD-40 Uses for Your Car, Truck, and Automobile | Auto Simple (2023)

11 Amazing WD-40 Uses for Your Car, Truck, and Automobile | Auto Simple (1)

Normal, everyday items can sometimes be put to extraordinary use. And perhaps the most amazing and versatile product you have at home is WD-40. If you think this degreasing agent is only useful for squeaky door hinges, allow us to enlighten you with these 11 automotive MacGyver tips.

All you’ll need is some WD-40 and something to wipe it off with, although if a product from the WD-40 Specialist Line would work better, we’ll make note of it.

11 Automotive WD-40 Uses

  1. Keep Dead Bugs Off

Remember the opening dragonfly scene in Men in Black? Well, if the truck had some WD-40 sprayed on the windshield and grill, that dragonfly would have slid right off rather than creating a big, ugly smear.

In addition to preventing bugs from hitting your vehicle, WD-40 is also a great option for removing already stuck-on bugs, bird droppings, tree sap, and grime. It won’t damage your paint; just remember to rinse it off with soap and water afterwards.

  1. Clean and Restore License Plate

If you have a rusty, old license plate, WD-40 will clean it easily. Just spray it on, wait 30 seconds, and wipe it off with a rag. Rinse with soap, and viola, a restored license plate!

  1. Clean Off Small Paint Rub

If another car got a bit too close and left a small paint scuff on your car, a little WD-40 may do the trick. While not recommended for large areas, small amounts of paint transfer can be effectively removed with WD-40. Wash off the area with soap and water back to its original finish.

(Video) 💛 18 Amazing WD 40 Uses for Your Car, Truck and Automobile

  1. Spark Plug Lubrication and Maintenance

If your car won’t start in wet or humid weather, try WD-40. WD-40 removes carbon residue and keeps moisture away from spark plugs and spark plug wires. WD stands for Water Displacement, so if your spark plugs are wet or you need to drive moisture away from ignition distributors, WD-40 will do the trick.

Turn off the vehicle and spray the spark plug wires and the inside and outside of your distributor cap with WD-40. Start the car back up to see if that did the trick.

If you keep having difficulties starting the car in wet or humid weather, you probably have a more serious problem, such as wires that need replacing. Using WD-40 to repel water from spark plugs, distributors, alternators, and batteries is a good way to prevent corrosion and keep moisture away. You can also use it to ease the removal of spark plugs, especially if there is any rust or corrosion.

  1. Clean Oil

If you need to clean oil from your hands, old oil cans, exhaust pipes, or even large oil spots on your driveway, WD-40 will wash it right off. When you are done removing the oil with WD-40, rinse off the area with soap and water.

  1. Remove Dirt, Grease, and Grime

Use the WD-40 Specialist Industrial-Strength Degreaser to clean off even the most stubborn dirt, grease, and grime from your car parts.

  1. Remove Stickers, Decals, Bugs, and Bird Dropping

Instead of using a knife or razor blade to remove stickers, decals, or any other material stuck to your car, use WD-40 first. Spray it on the surface, wait 30 seconds to a minute, and then use a no-scratch scouring pad to wipe it clean. Don’t forget to rinse with soap and water when you are finished.

  1. Prevent Mud from Sticking

If you’re an off-roader, you’ll know how difficult it is to get all of that mud and dirt off your vehicle after it dries. Prevent the mud from sticking in the first place by using WD-40 on your ATV, dirt bike, Jeep, or any other automotive vehicle.

(Video) 10 Amazing WD-40 Uses for Your Car, Truck and Automobile

  1. Prevent Breaking or Rounding Off Stuck Nuts and Bolts

If you have any rusty or stuck nuts and bolts, spray WD-40 Rust Release Penetrant to penetrate the threads. Wait a couple minutes and spray a second shot for good measure. Any fastener will be able to come off without damaging the threads or stripping the bolt.

  1. Protect Weatherstripping

Spray some WD-40 on your door gaskets/weatherstripping and windshield wipers to keep them pliant and extend their lifespans. You can also use WD-40 to unstick car doors and windows during cold weather.

  1. Clean and Shine Tire Sidewalls

Use WD-40 to help clean the sidewalls on your tires.

WD-40 Products

The new “Specialist” product line from WD-40 helps tackle the hard jobs.

WD-40 Specialist Spray & Stay Gel Lubricant

This type of WD-40 allows you to work underneath your car without having your degreaser drip all over the place. Water and rust-resistant, it’s the perfect WD-40 if you don’t want any excess dripping on vertical or upside-down surfaces.

WD-40 Specialist Machine & Engine Degreaser Foaming Spray

This degreaser is great for heavy duty machinery and cleaning and degreasing all kinds of greasy engines and equipment. The foaming action sticks to the surface, quickly cutting through the grease. All you have to do is wipe it up.

Additional Resources:

(Video) THESE 6 WD-40 Tricks for the Car EVERYONE should know 💥 (Do you know them?) 🤯

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(Video) amazing WD 40 Uses For Your Bike Car Truck Automobile And Rusted Part #wd 40


Why do people put WD-40 in their gas tank? ›

According to them, it's useful as a fuel, lube, gunk remover, and scratch remover. Okay, maybe not so much as a fuel. After draining a gas tank and filling it with WD40, the engine dies pretty quickly, despite the fact that WD40 is a flammable substance.

Is it OK to spray WD-40 on a car engine? ›

Use WD-40 and spray the entire greasy engine compartment with it. Remove the grease and grime with water and rinse it off. Depending on how dirty your engine is, you can also use a small brush to remove the grease for the hard-to-reach parts.

Can I use WD-40 on alternator? ›

No, it's a bad idea. WD-40 isn't a great lubricant, it's mostly a solvent and it will tend to wash oil off the cylinder walls which is absolutely not what you want to do before starting an engine.

Does WD-40 keep spiders away? ›

Keep Spiders Away

It has lubricant-like properties that do not come from the substance itself, but rather from dissolving components. Have a fear of spiders? Just spray some WD-40 on places where spiders and other insects can get in, such as windowsills and door frames. It will keep the spiders and other bugs out.

Where should you not use WD-40? ›

But Don't Spray It On:
  • Door hinges. Sure, WD-40 will stop the squeaking, but it also attracts dust and dirt. ...
  • Bike chains. WD-40 can cause dirt and dust to stick to a chain. ...
  • Paintball guns. WD-40 can melt the seals in the guns.
  • Locks. ...
  • iPods and iPads.
Aug 7, 2012

What does putting water in a gas tank do? ›

Water in gasoline doesn't just cause issues in the cylinder; it can easily damage injectors if it expands rapidly in the injector tip (due to the inherent heat of the injector). And if it sits in the fuel system for a long period of time, it can even cause rust in your fuel system.

What does vinegar do to a gas tank? ›

Vinegar is an acid of about 5–15% concentration and rest is water. It will definitely not burn in the engine, so don't expect it to run. It's an acid, hence corrosive. Keeping it in the fuel tank/ running the engine will corode the internals of the engine and everything it passes through.

How do you clean your headlights with WD-40? ›

Spray a generous layer of WD-40 over the headlights and let it sit for 5-10 minutes. While you wait, the specially engineered solution will expertly get under the buildup and muck, making your next step easier. Take a soft, clean loofah and scrub the headlights gently.

How do you clean spark plugs with WD-40? ›

Spray WD-40 Multi-use Product on a microfiber cloth and rub over the spark plug. You can even spray WD-40 directly on the spark plug & then wipe it down using a soft, clean cloth. After cleaning the spark plugs, put them back inside and start the car to see the difference.

Can I clean battery terminals with WD-40? ›

Certain products can also help to prevent buildup of rust and corrosion on your battery terminals. WD-40® Multi-Use Product is quite useful in this area, and you can use it not only on flashlight battery connection points but others such as you car battery as well.

Is WD-40 good for arthritis? ›

WD-40 Does Not Help Arthritis

Due to the myth that WD-40 helps arthritis, the WD-40 company website includes the following statement regarding the myth (amongst other cool myths, legends and facts)… Fact: This popular headline, appearing at least once a year in the tabloids, is completely FALSE.

How do I get brown stains out of my toilet bowl? ›

For example, applying white vinegar or lemon juice and scrubbing with a toilet brush typically works on newer stains. You can also try mixing white vinegar and baking soda if you need a stronger scrub. For older stains, using an industrial-strength cleaner like CLR should do the trick.

Will WD-40 remove scratches in car paint? ›

WD40 is oil, so when you spray it over scratches (especially the very light ones that are only in the top coat of paint) the oil fills in the scratches and leaves a shiny, glossy finish. It looks like the clear coat over the paint. WD40 can clean, too.

What can destroy an alternator? ›

There are several issues that can ruin an alternator:
  • Using jumper cables wrong,
  • Overloading the charging system with too many accessories,
  • Leaking fluid, or.
  • A tight belt that can damage bearings.
Jul 26, 2021

Does WD-40 keep ants away? ›

Spray any areas where ants are feeding or accessing your house with WD-40. The spray will kill ants and serve as a deterrent from further access as long as residue from the spray remains.

Does WD-40 repel mice? ›

WD-40 also helps keeps these pesky rodents at bay. I usually spray a little inside the bonnet in a few areas and have not had problems till date. Well WD40 says its safe to use on rubber.

Does WD-40 help keep bugs away? ›

Defend Against Insects

A light coating of WD-40 on doorframes, screens, and window sills keeps bugs from crawling into your home. If they find another way in, a quick shot immediately kills most problematic insects.

What are the dangers of WD-40? ›

Skin contact: May cause drying of skin and/or irritation. Eye contact: May cause irritation, tearing and redness. Ingestion (Swallowed): May caused irritation, nausea, vomiting and diarrhea. First Aid Emergency Procedures Ingestion (Swallowed): Do not induce vomiting, seek medical attention.

Does WD-40 damage car paint? ›

In addition to preventing bugs from hitting your vehicle, WD-40 is also a great option for removing already stuck-on bugs, bird droppings, tree sap, and grime. It won't damage your paint; just remember to rinse it off with soap and water afterwards.

Can you leave WD-40 overnight? ›

This rust-removal formula has no toxic fumes, does not use acids or caustic chemicals, is non-irritating to skin, and is safe to use on most metals. To remove light rust, leave parts in the solution for 1-3 hours. To remove heavy rust, leave parts in the rust removal solution overnight.

What happens if you put cooking oil in a gas tank? ›

As vegetable oil has a very high viscosity, an engine will find it difficult in atomizing the fuel completely when it is sprayed into the combustion chamber, this will result in a clogged engine.

Will rubbing alcohol remove water from gas tank? ›

For a typical 40-gallon fuel tank, one half to one pint of isopropanol will disperse the water and get your engine running satisfactorily.

What is the best additive to remove water from gas tank? ›

Iso-HEET®Opens a new window is a fuel additive specifically made to remove water from the gas tank. However, if there is more water in the tank than gas, there's no fuel additive on the market capable of getting the job done because the ratio is off.

What happens when you pour white vinegar in your toilet tank? ›

Vinegar is a great toilet cleaning solution. Not only is it free of chemicals and naturally antibacterial, it's also an acid, so it will remove minor lime and calcium deposits. All you need to do is pour a couple cups of vinegar in your tank and let it sit for an hour or so, then scrub and flush to rinse.

What does Clorox do to a gas tank? ›

Alternatively, driving a car with bleach in the gas tank has a disastrous effect. If the bleach keeps staying for a long time inside the engine parts and fuel system, it will have enough time to corrode and destroy the metal and rubber parts. The effect of bleach manifests faster than a normal corrosion.

What happens if you put hydrogen peroxide in a gas tank? ›

When you put hydrogen peroxide into a car's gas tank, it comes into contact with the engine's metal parts. What is this? The breakdown of these metal molecules caused by hydrogen peroxide can cause the engine to seize up and fail. In some cases, the damage caused by hydrogen peroxide may be irreparable.

How can I make my headlights crystal clear again? ›

Toothpaste and baking soda can be effective cleansers for cleaning headlights. Both products are abrasive enough to take off the fog without scratching or damaging the headlights. Polishing compounds such as Rain-X might also be effective enough to remedy UV damage.

Will Magic Eraser clean headlights? ›

While using a Magic Eraser on a vehicle's paint has become somewhat of a cautionary tale, it's completely safe to clean cloudy headlights. A bonus? The cleaning tool even gets rid of the gross yellow coloring that develops over time. Buff each one with a wet Magic Eraser, then wipe with a paper towel as they dry.

Can Coca Cola clean headlights? ›

The phosphoric acid in Coca-Cola can help remove oxidation from your headlights, and gives it a decent clean. As it could potentially damage or stain paintwork, it's best not to pour it on, but decant into a spray bottle and spray directly on the headlights.

Can I spray WD-40 in spark plug hole? ›

Car Repair – WD-40 Lubricates Spark Plugs & Other Parts

Dirt and Dust can build up around your spark plugs over time, this can affect their performance. For part of your car repair and maintenance, you can use WD-40 to remove carbon residue, and keep moisture away from spark plugs and spark plug wires.

What is the best thing to clean spark plugs with? ›

You can use a wire brush to remove debris from its threads. Pro tip - You can also use a carb cleaner to clean the spark plug if required!

Can I spray brake cleaner into spark plug hole? ›

A brake cleaner can clean many car parts — including spark plugs. Spray the brake cleaner on the plug, including threads and spark plug holes. Then wipe it off with a clean cloth to remove any remaining gunk. If need be, you can use the brake cleaner and wire brush collectively to deal with stubborn filth.

Does WD-40 get rid of scratches on cars? ›

One common use for WD40 is to remove car scratches. Given that it is designed to dissolve water, WD40 can help break down the pathways that scratch create on clear coat finishes. This makes it easier to buff out the scratch with a polishing compound.

Can I use WD-40 on my car dashboard? ›

For a final touch and polish, spray some WD-40 onto the cloth and give the dashboard and console a once over. This will act as a sealant and protect your dashboard from accumulating dust in the future; it also helps to add a little bit of “new car” shine to your dashboard.

Does WD-40 improve gas mileage? ›

It will not improve mpg.

What kind of toothpaste do you use for scratches on a car? ›

It is always recommended to use 'whitening' toothpaste to remove scratches from your car. 'Whitening' toothpaste works best because it contains small, barely perceptible abrasives.

What do car detailers use to remove scratches? ›

Car detailers will start by thoroughly cleaning your vehicle. This is done to keep loose dirt from getting caught in the buffer and scratching your car. Following the washing, the detailer will use their rotary buffer to buff off the scratches with a cutting compound.

What removes car scratches? ›

Most light scratches can be fixed by polishing the clear coat with a rubbing compound. It will remove the damaged layer and leave your paint looking good as new. If the scratch is deep, you may need to sand the area before polishing it. It will remove any rough edges and make it easier to apply the compound evenly.

Will WD-40 remove brake dust? ›

Secondly, apply the WD-40 Multi-Use Product onto a Cleaning Cloth. Begin to rub the entire surface of the alloy wheel, focus on the areas with remaining stubborn grime or brake dust. Please be advised this should be applied using a cloth to avoid getting any on the wheel or brake pads.

Can I use Dawn to clean my dashboard? ›

No, you should not. If you think about what dish soap like Dawn or Dial is made for like removing grease and caked-on food, then you'll understand why it's not good for your car. While it does a good job, it's good because it's considered an abrasive soap.

Can I use Windex to clean the dashboard of my car? ›

ammonia – the glass on your car's dashboard, windows, and mirrors aren't pure glass, but plastic. Household cleaners like Windex use ammonia, which can discolor the material and even cause it to crack.

Does WD-40 Damage car clear coat? ›

It's safe! But just because it won't dissolve your car's clear coat doesn't mean that using it on paintwork is a good idea. We already mentioned the smell and the greasy appearance that WD-40 leaves behind. But maybe the worst part is that WD-40 attracts dirt like a magnet.

Is it good to put sea foam in your gas tank? ›

For cleaning a gasoline or diesel fuel system, it's safe to add more Sea Foam to fuel. In fact, the more Sea Foam you add to fuel, the better it cleans! Pour Sea Foam in your fuel tank to clean and lubricate your entire fuel system.

What's the best speed to drive to save gas? ›

While vehicles reach optimal fuel economy at different speeds, gas mileage usually decreases rapidly at speeds above 50 miles per hour (mph). For light-duty vehicles, for example, every 5 mph you drive over 50 mph is like paying $0.18 more per gallon of gas (based on the price of gas at $2.63 per gallon).

What gives a car better gas mileage? ›

It's best to drive the speed limit and use cruise control when possible. Rapid acceleration and hard braking quickly eat up fuel, so avoid those actions whenever possible. When your tires are underinflated, fuel consumption can increase by as much as 3%.


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