How to Clean the Car’s Engine

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So why do we need clean the engine of a car? And how often should we do this? Is it possible to clean it with our own hands? There are many reasons.

Clean Engine

Car’s engines are something like a core of our planet, it is an important thing of the whole mechanism, and this is undoubtedly a reason for caring for it. So, why to clean this part?

  1. Accumulating oil and dirt under your car’s hood can affect electric actuators and wiring in a negative way. Even some shirt circuit can cause fire.
  2. The dirty engine takes a bigger risk with being overheated so you definitely should clean it. Due to intense heat in the lubrication system there can be the reduction of oil’s viscosity, and then the engine becomes overheated.
  3. Splashes of oil from the dirty engine are also inflammable.
  4. If you want to sell your car, than you have more opportunities to do this if it is clean. It’s always pleasant to have a groomed car, and a buyer will appreciate it.
  5. You can have problems and difficulties with dirt in the engine at a technical level. A motorist sometimes can’t notice some little faults that in the future can cause more serious breakdowns.


If you can’t decide you should clean your car yourself or use car-wash services, just remember that there are many cases when after visiting a car-wash the engine just does not start. And here are some reasons for it:

  • low-quality car maintenance;
  • unscrupulous workers.

But if you clean the engine at home, you’ll also save your money.

It’s not so difficult to clean the engine with your own hands. For this you need shampoo or liquid soap but, of course, they are not for your hands but specialized things that cope with engine oil and other dirt. Or you can use a special cleaner to clean the engine.

Clean Engine


The Recommended Way of Cleaning the Engine

To clean the engine, don’t use a powerful stream of soapy water, otherwise:

  • you can damage the insulant of the hood or partitions of the car’s interior;
  • it can provoke corrosion;
  • paint can peel off from separate parts;
  • essential factory labels with information that can be useful for you in the future can also fall off.

To clean the engine accurately, you need:

  • cover all places damaging from water (generator, filter air collector, breaker-distributor) with water-proof fabrics or polyethylene;
  • cover them with plastic bags with rubbers not to let water enter the places having fuses and electronic units;
  • heat it up a bit and switch off the engine (it mustn’t be hot, just approximately 40° C (104 ° F));
  • if it is possible, remove the battery or its negative side;
  • apply soap solution to the engine and leave it for some time for oil to erode (pay attention to water temperature: it must match engine’s degree, to be exact, they just must be of the same heat);
  • clean the engine thoroughly;
  • remove cover protecting from water and dry each part separately (with compressor or vacuum cleaner); it’ll accelerate the process. If you don’t have such equipment, leave your car in the open air to complete dryout;
  • finally, close the hood, try to start the engine and let it work for ten minutes.

I also can provide you recommendations not only how to clean the engine but also how to get rid of corrosion. Use the old folk and effective “remedy” – the water and baking soda solution.

If you want your car to be functional, it’s necessary to clean the engine once a year but if you travel by car on impassability, you need clean it at least two times a year.

There is one more method that is called “dry cleaning”, and here washing gel must be rinsed not with water but with a steam generator. They do this in a car-wash, and it is not so expensive procedure.


What We Shouldn’t Do

  1. Don’t listen to those who advise you to clean the engine with gasoline or diesel fuel. This method is unsafe and everything can catch fire.
  2. Don’t use usual household chemicals to clean the engine as they consist of harmful substances which can be destructive for a car. Moreover, you won’t remove dirt and oil with these chemicals, so it will be necessary to clean it repeatedly.
  3. If you doubt or aren’t confident in your abilities, it’s better not to clean the engine yourself. Visit a qualitative service center and there they will clean your car and even provide a guarantee to this service.
  4. Foreign-made cars are highly sensitive to this procedure. Ensure that wiring is not circuited because water can enter through the cover you protect the parts, so just be careful when you clean it.

What to Do if After Cleaning the Car Doesn’t Start?

It is possible that water entered spark plug wells in the hood. After cleaning the engine it’s necessary to remove and dry them, otherwise in the future you won’t fix the breakdown.

How to clean the diesel engine?

The diesel engine doesn’t differ almost from the gasoline one. Only valve parts had been strengthened to withstand larger load, and there isn’t the ignition system in the diesel one. It’s almost impossible to damage the engine while washing, but due to a powerful stream of water fuel hoses can fall off and water can infiltrate the fuel system. When building you must lubricate everything thoroughly not to let oxidation occur.

The battery, the starter and the generator won’t be broken or damaged so you can clean them as many times as you want. It is enough to dry them for several hours, and then you can start the engine.

Now we sum up the results

We can weigh everything one more time. According to the above information, you can and you should clean the engine, remove all dirt and oil, but only if there is a necessity.

Try to adhere to the washing technology and if you decided to do this yourself, follow all the rules. In the final stage don’t forget to dry the engine thoroughly to prevent faults. If you decided to use car-wash services, only qualified workers should be considered.

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