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Written by 4:10 pm Electric Pressure Washers, Guides

Do Electric Pressure Washers Need Oil?

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Electric pressure washers have become a staple tool in households and businesses globally. Their power to clean various surfaces, from backyard patios to garage floors, is unparalleled. However, like every powerful appliance, maintenance is necessary to ensure optimal performance and longevity. One question that you may have, particularly if you’re new to using electric pressure washers, is, “Do electric pressure washers need oil?”

In most cases, electric pressure washers do not require oil for the motor. They are typically equipped with a “sealed” pump that works without the need for oil lubrication. However, this may vary based on the model and the manufacturer’s guidelines, so it’s always advised to refer to the user manual.

Do Electric Pressure Washers Need Oil?

So, you’ve bought yourself a shiny new electric pressure washer, and you’re all set to tackle the dirt and grime that’s been lurking around your home. But a question that might be lingering on your mind is, “Does this electric pressure washer need oil?”.

The simple answer is, usually, no. Let me explain why.

Your electric pressure washer runs on, well, electricity. Its motor converts this electric power into kinetic energy that then blasts water out at high pressure. Since there isn’t a traditional combustion engine involved like in a gas pressure washer, there are fewer moving parts in an electric pressure washer that would need lubricating.

The motor in your electric pressure washer is typically coupled with a ‘sealed’ pump. Being ‘sealed’ means that the pump is closed off, discouraging any sort of external elements, like dust or even oil, from entering it. While it means the pump doesn’t need oil for lubrication, it also means it can’t be opened up for any sort of servicing or repair.

However, it’s important to note, that even though electric pressure washers generally don’t require oil for the motor, they may require oil for the pump on some high-end models. In these cases, your user manual will guide you. If oil is recommended, follow the guidelines set by the manufacturer to ensure you maintain your electric pressure washer properly.

Remember, don’t add oil unless you’re absolutely sure it’s necessary. When in doubt, consult your pressure washer’s user manual or reach out to its manufacturer.

Oil Type & How to Add Oil to Your Electric Pressure Washer

Alright, so we’ve established that most electric pressure washers don’t need oil for the motor. But, for the small percentage that does, or if your electric pressure washer requires oil for its pump, which type should you use and how should you add it?

First things first, always check your user manual. This booklet of wisdom will specify the type of oil recommended by the manufacturer. A common type of oil used for pressure washer pumps is non-detergent SAE 30 oil. But remember, your washer may be different.

Once you’ve found the right oil, here’s a quick step-by-step guide to adding oil:

  1. Locate the oil cap: Look for the place where you add oil. It’s usually marked clearly. In some models, it might be on the pump, while in others on the motor.
  2. Prepare your pressure washer: Now, place something like a pan or absorbent towel under the pressure washer. This is to prevent any accidental oil spills from making a mess.
  3. Remove the oil cap: Unscrew or pop off the oil cap. Make sure you place it somewhere safe so it doesn’t get lost.
  4. Add the oil: Using a funnel to avoid spilling, pour the recommended oil into your power washer’s pump or motor. Take your time with this. Rushing might lead to spills.
  5. Check the level: Most models have a dipstick or view window to check the oil level. Make sure it’s in the recommended range. Not too much, not too little.
  6. Replace the cap: Screw or pop the cap back onto the oil reservoir. Make sure it’s secure.

Comparison to Gas Pressure Washers

Here’s the deal: Gas pressure washers are a bit like your car – they have engines that require oil to keep everything running smoothly. Unlike electric pressure washers with their ‘sealed’ pumps, gas pressure washers have heavy-duty engines with several moving parts. These parts need regular lubrication to operate efficiently and prevent wear and tear.

As a rule, gas pressure washers need the oil changed after every 20 to 50 hours of use or at least once per season. The actual frequency depends on your model and how often you use the washer.

Most gas-pressure washers use a 4-stroke engine, which requires separate oil for the engine and the pump. The oil used for gas pressure washers is typically SAE 30, 10W-30, or 10W-40, while the pump benefits from a non-detergent oil.

honda pressure washer oil 10w-30
Honda SAE-30 is one of the best oils for both electric & gas-pressure washers

Does this mean gas pressure washers are high-maintenance? Not necessarily! They just need a bit more care than the mostly self-reliant electric pressure washers.

Frequently Asked Questions (FAQs)

Q: Is there a need to use a specific brand for the recommended oil type?

A: No, you don’t have to stick to a specific brand, as long as you use the correct type of oil mentioned in your user manual. However, it’s recommended to use high-quality oil products for better longevity and performance of your electric pressure washer.

Q: Can I use synthetic oil in my electric pressure washer’s pump?

A: Some pressure washer pumps can use synthetic oil, while others may not be suitable for it. Always check your user manual or the manufacturer’s website for specific recommendations before using synthetic oil in your pressure washer’s pump.

Q: Can I switch from regular oil to synthetic oil, or vice versa, in a pump that allows both?

A: Yes, you can switch between regular and synthetic oil in a pump that allows for both types. Always ensure that you drain the old oil completely before adding the new one, and follow the manufacturer’s guidelines during the process.

Q: What are the signs that my electric pressure washer might need an oil change?

A: In the rare case that your electric pressure washer requires oil, some signs that might indicate the need for an oil change are:

  • A decline in performance
  • Strange noises coming from the pump or motor
  • Decreased water pressure while using the washer
  • Leakage around the oil seal

Always consult your user manual or contact the manufacturer if you’re unsure about changing the oil.

Q: Can I use automotive oil in my electric pressure washer?

A: Automotive oil is not recommended for electric pressure washers, particularly within the pump. The specific type of oil required by your pressure washer will be listed in the user manual. Only use the recommended oil type to avoid damage and ensure proper performance.

Q: Should I change the oil in a sealed electric pressure washer pump if the oil is no longer clear?

A: In most cases, the oil in a sealed electric pressure washer pump should not be changed, as the pump is not designed to be opened for maintenance. If the oil is no longer clear, and you’re experiencing performance issues, it’s best to consult the manufacturer or a service professional for advice.

Q: How often should I check the oil level in an electric pressure washer that requires oil?

A: It is a good practice to check the oil level before each use or at least on a monthly basis depending on usage. Frequent inspection helps to identify any potential issues and ensures your electric pressure washer is performing optimally.

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