How to Clean Engine

Cleaning your car engine doesn’t have to be a daunting task. It can be pretty straightforward with a few simple tips and some basic supplies. Whether you’re looking to spruce up the looks of your ride or get it ready for an automotive inspection, taking the time to clean your car engine properly can help assure the health and longevity of your vehicle. Read on to find out more about how to clean car engine.

Material You Need To Clean a Car Engine

Here is a list of items you’ll need to have on-hand when you clean your car’s engine:

  • Water hose
  • Degreaser or soap
  • A pressure washer
  • Rags
  • Brush
  • Bucket

How to clean car engine

How to Clean Car Engine

A clean engine performs better, runs more efficiently and is less likely to suffer from corrosion or other damages. However, when it comes to engine cleaning, many people need help figuring out where to begin and what the process entails.

Following our step-by-step guide, you can learn how to clean car engine efficiently and effectively.

Step One: Open the Hood and Prop it Up

The first step is to prop open the hood of your car. Place the plastic drop cloth underneath your engine to catch any debris or overspray from the engine degreaser.

Then, you will need to locate all the components of your engine. This includes the spark plugs, electrical components carburetor, fuel injection system, as well as intake and exhaust manifolds.

Using your soft brush, lightly scrub these components and remove any dirt, dust, and grease that may have accumulated over time.

Step Two: Cover the nearby electronics

Before you start cleaning the engine, be sure to cover any nearby electronics, such as the battery and fuse box. Newspaper, a plastic bag, or a tarp should do the job. Make sure you keep the area dry while cleaning.

Step Three: Begin clean-up

Use a soft brush to sweep away any dirt or grime from the engine. Be careful not to damage any wires, hoses, or other sensitive parts. If you need more scrubbing power, use a finely abrasive household cleaner on the more significant parts of the engine. A hose-and-brush combo can help clean hard-to-reach places.

Step Four: Rinse

As you finish the scrubbing process, use a hose to rinse the engine. Be sure to cover any electronics before you do this. Be gentle when rinsing—too much pressure from the water can damage the engine.

Step Five: Dry the Engine

Once you’ve finished rinsing the engine, use an old rag to dry off any wet areas. This will prevent water spots that might cause corrosion and rust in the long run.

Step Six: Wipe

Finally, use wax to wipe the engine’s surface. This will help to protect it from weathering and corrosion, helping to maintain the engine’s condition in the long run.

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What to Cover When Cleaning Engine?

Covering certain components with plastic before you begin cleaning your engine is essential. Doing so will protect them from being damaged by any cleaning solutions, water, or other debris.

  • Car battery terminal
  • Engine’s belt
  • Engine control unit
  • Ignition wires
  • The air intake system

Benefits of Cleaning Your Car Engine

Regularly maintaining your car engine can save you money in the long run and keep you safe on the roads.

But what are the exact benefits of cleaning your car engine? Here are some of the top advantages of a clean engine:

Improved Fuel Efficiency

A well-maintained car engine produces more power than a dirty one. This means your car can go farther on one tank of fuel, which can help save you money.

Cleaning your car engine regularly can help you keep the air and fuel filtration system in optimum condition, which helps greatly improve your vehicle’s fuel efficiency.

Reduced Wear and Tear

Keeping your engine clean can reduce the amount of wear and tear your vehicle goes through. When dirt and grime accumulate on the engine, it can cause extra pressure on the internal components and may even reduce the vehicle’s lifespan.

Improved Performance

Keeping your car engine clean helps improve its performance level. A clean engine is more responsive to the accelerator and can maintain smoother acceleration. The engine will also stay more relaxed, and this helps keep the engine running at its peak performance level at all times.

Reduced Repair Costs

Regularly cleaning your car engine helps prevent early engine failure and decreases general repair costs. By taking care of the engine, you are avoiding the costs of costly engine repairs or a complete engine replacement when it’s too late.

Greater Resale Value

A clean car engine helps your vehicle retain its resale value better. If you plan to sell your car in the future, keeping it in good condition is essential. Regularly cleaning the engine helps enhance its value and makes it more appealing to potential buyers.

Engine Cleaning Products

With the right engine cleaning products, your engine can run as smoothly and efficiently as possible, helping to extend its life. Check the product manufacturer’s instructions to ensure you use the correct products that best suit your engine.

How Much Does it Cost to Clean Car Engine

The truth is, the cost of cleaning your car engine will depend on a variety of factors, such as the make and model of your vehicle, the age of the engine, the level of dirt or grime on the engine’s components, as well as any additional services you may need while cleaning the engine. Typically engine cleaning costs around  $100 to $400.


Can you spray your engine with water?

The answer is yes – and with proper precautions, it can help! When you spray the engine with water, you’re loosening the dirt, grime, and other particles that have built up and become lodged inside the machine.

How can I clean my engine without harming it?

The best way to clean your engine is to start by protecting the non-engine parts. Cover the air cleaner, the battery, and anything sensitive with a plastic sheet and duct tape—taking time to ensure no exposed gaps.

Is it OK to pressure wash a car engine?

Yes, it is okay to pressure wash a car engine, with some caveats. A pressure washer can be used to clean the machine and other hard-to-reach areas of the car if you follow the proper steps and take the necessary precautions.


In conclusion, cleaning a car engine can be challenging, but it’s a necessary part of regular car maintenance. Knowing the proper steps to do the job properly and safely is essential in protecting the engine from wear and tear and further damage.

Regular engine cleaning can help maintain engine performance and lifespan, so get the job done regularly and correctly. We hope now you know how to clean engine.

Good luck!

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