Guide To Changing Pressure Washer Pump Oil

Pressure Washers need constant maintenance because their engines are small and designed in a way that needs a constant change of pump oil. If the pressure washer is working regularly, then the pump oil should be changed frequently. Pressure washer pump oil is specially formulated for small engines and is a necessity. If you want to carry on the deep cleaning with high power pressure washer without any problems, you should change the pump oil because it is the lubrication engine needs. You should change the oil at least every three months when using it frequently. Without this simple task, you risk damaging the water pump. Before heading towards when to change the pump oil, let’s gather some points on why should you change it. Luckily, changing pressure washer pump oil only takes a few minutes. You just need to ensure that you have the right oil.

Best Pressure Washer Pump Oil - Comparison Chart

Image
Briggs & Stratton 190586GS 4.6 oz. Bottle Of...
Briggs & Stratton Synthetic Pressure Washer Pump...
Cat Pumps Pressure Washer Pump Oil, 21 Oz.
Mi T M AW-4085-0016 Power Washer Pump Oil
Mag 1 (60694-6PK Pressure Washer Pump Oil - 1...
Title
Briggs & Stratton 190586GS 4.6 oz. Bottle Of...
Briggs & Stratton Synthetic Pressure Washer Pump...
Cat Pumps Pressure Washer Pump Oil, 21 Oz.
Mi T M AW-4085-0016 Power Washer Pump Oil
Mag 1 (60694-6PK Pressure Washer Pump Oil - 1...
Prime
-
-
Star Rating
Customer Reviews
52 Reviews
31 Reviews
28 Reviews
26 Reviews
24 Reviews
Price
$11.30
$8.95
$9.99
$10.01
$17.18
Image
Briggs & Stratton 190586GS 4.6 oz. Bottle Of...
Title
Briggs & Stratton 190586GS 4.6 oz. Bottle Of...
Prime
Star Rating
Customer Reviews
52 Reviews
Price
$11.30
Details
Image
Briggs & Stratton Synthetic Pressure Washer Pump...
Title
Briggs & Stratton Synthetic Pressure Washer Pump...
Prime
Star Rating
Customer Reviews
31 Reviews
Price
$8.95
Details
Image
Cat Pumps Pressure Washer Pump Oil, 21 Oz.
Title
Cat Pumps Pressure Washer Pump Oil, 21 Oz.
Prime
-
Star Rating
Customer Reviews
28 Reviews
Price
$9.99
Details
Image
Mi T M AW-4085-0016 Power Washer Pump Oil
Title
Mi T M AW-4085-0016 Power Washer Pump Oil
Prime
-
Star Rating
Customer Reviews
26 Reviews
Price
$10.01
Details
Image
Mag 1 (60694-6PK Pressure Washer Pump Oil - 1...
Title
Mag 1 (60694-6PK Pressure Washer Pump Oil - 1...
Prime
Star Rating
Customer Reviews
24 Reviews
Price
$17.18
Details

Top 10 Pressure Washer Pump Oils

     ★ Top Pick       

Briggs & Stratton Synthetic Oil

1. Briggs & Stratton Synthetic Oil For Pressure Washer Pump

Available in a 15-ounce bottle, the Briggs & Stratton synthetic pressure washer pump oil is a heavy-duty oil that does a great job of keeping your pump running properly year after year. Made to accommodate most gas pressure washers, it even comes in a mess-free bottle that has a fill-neck feature to make it simple and fast to use just the amount you need and nothing more.

If you want your pressure washer to run like new for a very long time, you need this synthetic oil to keep it clean and efficient so that will indeed happen. The company also makes O-ring replacement kits and chemical siphon hoses, among others.

Pros

  • Easy and neat to use.
  • Perfect for a variety of gas pressure washers.
  • Reasonably priced.

Cons

  • Some complaints about the overall quality of the product.
  • Some complaints about it being a little messy.
  • Some concerns about the price.

     ★ Top Pick       

2. General Pump 758-115 Pressure Washer Pump Oil

This is a non-detergent 30W pump oil that is usually sold as a packet of two to six 16-ounce bottles. It is a top-notch oil that has a high natural viscosity and is recommended specifically for general pump crankcases on systems that require less than 25 BHP. A premium lubricant made by a company that specializes in this type of product, the General Pump oil for pressure washers is great for a variety of industrial pumps and is manufactured by an OEM supplier.

Pros

  • A high-quality oil specifically made for pressure washer pumps.
  • Made by a very reputable company.
  • Available in single bottles or cases with up to six bottles in them.

Cons

  • Some concerns about the price.
  • Some concerns about the overall quality.
  • Some complaints about messiness.

     ★ Top Pick       

Briggs & Stratton 190586GS 4.6 oz. Bottle Of...

3. Briggs & Stratton 190586GS 4.6-ounce Bottle of Mineral Oil

Made in the U.S.A., this Briggs & Stratton bottle of mineral oil is specifically recommended by many top-notch manufacturers of pressure washer pumps. The Briggs & Stratton name means a great reputation, and the bottle even comes pre-measured so that you don’t have to guess on the amount you’ll need to get the job done.

This is also a product that can be used in a variety of pressure washers, and since many manufacturers recommend changing the oil yearly, it is good to know that it is easy to use and helps the pump continue to work the way it should. It is a great product, therefore, to keep on hand year after year.

Pros

  • Works with a variety of pressure washer pumps.
  • Easy to use.
  • Comes pre-measured for convenience.

Cons

  • Some concerns about its messiness.
  • Some complaints about the price being too high for what you get in return.
  • Some complaints about the overall quality of the item.

     ★ Top Pick       

Sale Cat Pumps Pressure Washer Pump Oil, 21 Oz.

4. Cat Pumps Pressure Washer Pump Oil in a 21-ounce Bottle

This pressure washer pump oil is the perfect solution when you want your pressure washer pump to last for many years to come. Let’s face it, replacing the pump is expensive, but a little maintenance in the form of annual oil changes goes a long way in keeping the pump working like it should. Considered by many to be one of the best oils on the market, this bottle of oil is usually recommended as a replacement every 50 hours or so, which can keep the pump running efficiently for a very long time.

Pros

  • Great way to maintain your pressure washer pump.
  • Keeps the pump working efficiently year after year.
  • Can be used on pumps made by Cat, AR, Comet, and General.

Cons

  • Some concerns about the price.
  • Some concerns about the messiness of the product.

     ★ Top Pick       

Mi T M AW-4085-0016 Power Washer Pump Oil

5. Mi T M AW-4085-0016 Power Washer Pump Oil

If you want to keep your pressure washer pump running smoothly and efficiently year after year, once-a-year oil changes are a must, and this is the perfect oil to use every time. Since it is specifically made for pressure washer pumps, you can rest assured it is just what your pump needs for maintenance and to keep the pressure washer working great.

This is also a product that is easy to use and it can be used in several different models, giving you a simple and fast way to keep your pressure washer pump in excellent condition. It is the perfect product when you’re looking for something to extend the life of your pressure washer pump.

Pros

  • A high-quality product proven to work.
  • Very reasonably priced.
  • Works on several different models of pressure washers.

Cons

  • Some concerns about mediocre performance.
  • Some complaints about the overall quality of the product.

     ★ Top Pick       

Mag 1 (60694-6PK Pressure Washer Pump Oil - 1...

6. Mag 1 Pressure Washer Pump Oil

Perfect for many different types of pressure washer pumps, this oil offers numerous advantages, including preventing sludge and varnish formation, resisting aeration and foaming, and even protection against rust and oxidation. These are all important advantages, making this oil a great multipurpose pump lubricant that you can use year after year to keep the pump in excellent working order.

The company also provides a great customer service in case you have any questions or concerns, and the product itself is a non-detergent variety that provides the best oil for your pressure washer pump.

Pros

  • Non-detergent 30W oil that works the way it’s supposed to work.
  • Very reasonably priced.
  • Excellent customer service department.

Cons

  • Label doesn’t list the viscosity rating.
  • Some confusion over the new label.

     ★ Top Pick       

Sale Generac 6656 Pressure Washer Pump Oil SAE 30,...

7. Generac Pressure Washer Pump Oil in 20-ounce Bottle

This pressure washer pump oil offers added ingredients so that it takes even better care of your pump than other brands will. It helps reduce friction and wear at the startup, and it even helps prevent thermal breakdown from occurring. This SAE 30W oil is great for a variety of pressure washers, and the company that makes this oil makes oils for both residential and commercial or industrial types of pressure washers.

It is easy to keep your Generac unit working right year after year when you regularly change the oil in the pump, and this oil makes it easy and fast to do just that. Maintenance is always better than replacing a product, and this oil helps you save both time and money over the long run. It is simply a high-quality product you can trust from year to year.

Pros

  • Made by a reputable manufacturer.
  • Works the way it is advertised to work.
  • Very reasonably priced.

     ★ Top Pick       

AR North America AR64516  Crankcase Oil

8. AR North America Crankcase Oil

Made in Italy, the AR North America crankcase oil is specially designed to be used in other AR North America products. This is a high-quality, high-performance crankcase oil that is made to be used in the Triplex plunger pump, as well as other pressure washer pumps. It keeps the pump running smoothly year after year, and it is reliable to boot.

The AR North America crankcase oil can be used as a pre-lube for restart and as a storage oil. It is easy to use and will arrive quickly after you order it, meaning you won’t have to wait long to begin using it.

Pros

  • A high-quality oil that does what it promises to do.
  • Easy to use.
  • Works on several types of pressure washers.

Cons

  • Some complaints about the price.
  • Some concerns about it being slicker than expected.
  • Some concerns about it being a mediocre product.

     ★ Top Pick       

9. Simpson Cleaning Pressure Washer Pump Guard

An excellent pressure washer pump oil, the Simpson pressure washer pump guard minimizes harmful corrosion, protects pumps between uses, protects pumps from freezing down to -25ᵒ Fahrenheit, and is even eco-friendly for the tree-huggers out there. You can use it to lubricate seals, pistons, and valves, so it is perfect for preventing sticking from occurring.

The product is designed for use in most types of pressure washers and even when you need to store your pressure washer for 30 days or more. It prevents sticking and works on a variety of items, and it always works the way it is supposed to work.

Pros

  • A high-quality product with multiple uses.
  • Good value for the money.
  • Works when you need to store your pressure pump for a while.

Cons

  • Some complaints about the plastic being difficult to use.
  • Some complaints about the product coming without a shut-off valve.
  • Some concerns about not being able to squeeze the product out.

     ★ Top Pick       

Mi-TM AW-4085-0016 Pump Oil

10. Mi T M Pump Oil

Made for most types and brands of pressure washers, this pump oil is a detergent HD30 type of oil that is great for yearly maintenance of your gas pressure washer. It is reliable and well-made, and it is made by a company that only makes these types of products and, therefore, makes only high-quality items. When it comes to lubricants for power tools, you simply can’t beat this pump oil because it is simple to use and will keep your pressure washer working efficiently year after year.

Pros

  • Easy and neat to use.
  • Perfect for a variety of gas pressure washers.
  • Reasonably priced.

Why Do You Need to Change the Oil in Your Pressure Washer’s Pump?

  • As with the mechanical components in your car or truck, the pressure washer pump needs oil for lubrication. Oil helps lubricate parts, reducing friction and wear. When you avoid oil changes, you shorten the service life.

  • By reducing friction, lubrication helps reduce heat. As metal parts heat up, they expand, increasing the risk of cracking and other damage.

  • Over time, the oil begins to break down. It also becomes contaminated with dirt and debris, limiting the effectiveness of the oil for lubricating the pump.

  • Protecting the pump also helps avoid the need to replace it. In some cases, replacing or repairing the pump may cost more than the value of the pressure washer.

  • The manufacturer’s warranty may provide another reason to change the oil. Some pressure washer warranties require this maintenance task. Skipping it can void the warranty.

  • Not all pressure washers require oil changes. Many residential-use machines come with sealed pumps.

  • Manufacturers fill the oil and seal the pump, eliminating the need for maintenance. If the part breaks or leaks, you simply replace it.

  • If you are not sure whether your pump requires oil changes, check the user manual. It should include a section on the topic. This section should also recommend how often the oil needs changing.

  • The typical recommendation is to change the oil after every 200 to 250 hours of use or every three months. If you only use the machine infrequently, you should still change the oil at least once per year.

  • You can also inspect the pressure washer pump. If the pump requires an occasional oil change, it should contain a drain and a lid or fill plug.

how to change oil pump

Types of Pressure Washer Oils

1. Detergent Motor Oil versus Non-Detergent oil

What kind of oil does a pressure washer use?

Instead of the detergent motor oil that is commonly used in engines, you should use non-detergent pump oil.Modern engines use detergent oils to help keep contaminants from sticking to surfaces. The dirt and debris then pass through an oil filter. As pump don’t have an oil filter therefore using detergent motor oil causes the oil to become dirty very quickly. The contaminants build up in the oil, turning it to black sludge.

Most manufacturers recommend non-detergent oils designed specifically for pressure washer pumps. These products typically include “pump oil” directly on the label. However, some people prefer to simply use all-purpose motor oil.If choosing an all-purpose motor oil, ensure that you use a non-detergent oil. These products should include “non-detergent” or “ND” on the label.

The power washer oil type that you use may also depend on the climate. All-purpose motor oils contain various designations describing the viscosity of the oil at different temperatures. The label may include “SAE 30” or “SAE 5W-30”. SAE stands for Society of Automotive Engineers. The “W” stands for winter. The numbers represent the viscosity of the oil.The viscosity is the ability of a liquid to resist flow. With a high viscosity, the oil resists flow and remains thick and syrupy. With low viscosity, the oil flows more easily.Most pumps work fine with SAE 30 non-detergent oil. However, colder temperatures can cause the oil to remain thick, requiring a lower viscosity. SAE 30 oil works best in temperatures above 40 degrees Fahrenheit.If you live in a region where temperatures drop below 40 degrees, you may benefit from a multi-viscosity oil such as an SAE 5W-30 or 10W-40 oil.During the winter, the oil performs as an SAE 5 or SAE 10 oil. In normal temperatures, the oil performs as an SAE 30 or SAE 40 oil.

2. Synthetic oil Versus Conventional Oil

The next consideration is synthetic oil versus conventional oil. Both types of oil undergo a refinement process that includes the addition of additives. However, synthetic oil includes additional refinement.With synthetic oils, manufacturers can control the purity and molecular size of each ingredient, resulting in oils that provide better performance.Conventional oils tend to break down faster, allowing contaminants to potentially damage the pump. With fewer impurities, synthetic oil offers longer-lasting protection.

Unfortunately, synthetic oil also costs more due to the additional refinement and inclusion of additives. If you maintain a regular oil change schedule, you should not need to worry about the buildup of debris.Overall, the choice between conventional and synthetic depends on your own preferences. Synthetic oil performs better but costs more.

So Which Oil Should You Use? The Top Recommendations Come Down To The Following:

While these three options should work in any pump, always check the user manual for the manufacturer’s recommended pressure washer pump oil.

How To Change Pressure Washer Pump Oil in 9 Steps:

  1. First, you need to purge contaminants from the pump. Connect the pressure washer for use and turn on the water supply.
  2. Start the engine and spray the trigger to produce a steady stream of water. Continue holding for about two minutes.
  3. After flushing the system, turn off the washer and disconnect it from the water supply. Place a pan or bucket under the pump oil drain plug.
  4. If changing the engine oil, drain the fuel and oil from the engine.

Troy Bilt Power Pressure Washer Water Pump

  1. Remove the oil cap from the water pump. Depending on the model, you may need an Allen wrench to remove the cap.
  2. With the cap removed, remove the drain plug and tilt the pressure washer. Drain the oil into the pan or bucket until the oil stops draining.
  3. Follow the directions in the user manual to determine how much oil to add to the pump. Premeasured bottles are also available.
  4. Reattach the drain plug and pour oil into the pump. Replace the oil cap and wipe up excess oil with a rag. The pressure washer is now ready for use.

Power Washer Oil Change Pump (Fuel Transfer Pump)

An oil change pump, or fuel transfer pump, provides a way to extract oil and fuel from mechanical systems. Some pumps are simple siphons with hand-powered pumps while others feature electric motors to help pump the oil or fuel. With either option, you insert a hose from the pump into the water pump or oil tank. You then insert the drainage hose into a bucket or pan.

If you do not use your pressure washer for an extended period, the oil and fuel continue to break down. This leads to buildup around the pump, engine, and other components.Before putting your power washer into storage, consider using an oil change pump or fuel transfer pump to thoroughly remove the oil and fuel. The pump also allows you to remove more of the oil when performing an oil change.

New Honda Pressure Washer Pump

Along with basic oil pumps, you can find pump saver oil. These products may come with their own pumps or require manual pouring. As with a fuel stabilizer, the use of a pump saver oil helps protect the washer during storage.

Other Links:

Top Oil Change Pump Brands

Several different pressure washer pump oil brands produce quality oils suitable for use in almost any pressure washer. The most trusted names include:

  • Briggs & Stratton: Briggs & Stratton manufacturers several high-quality synthetic oils including the 6033 Synthetic 75W-90 Pump Oil. This synthetic oil performs well at any temperature but costs a little more compared to other options.

Briggs & Stratton SAE 5W-30 Synthetic Small Engine...
100% Synthetic SAE 5W-30; For Use In All Air Cooled 4-cycle Engines; 32 Oz. bottle
$13.65
  • Mi-T-M & CAT Pumps: Mi-T-M and CAT Pumps both offer affordable conventional oil designed specifically for power washer pumps. While these products are for specific water pumps, they should work with almost any brand.

Mi T M AW-4085-0016 Power Washer Pump Oil
Keeps pressure washer running smoothly; For use with all MI-T-M units and with most other units
$10.01
  • Mag 1: Mag 1 sells a non-detergent SAE 30W oil with anti-foaming and anti-aeration additives. It protects against rust and provides the best choice for those on a tight budget.

Mag 1 (60694-6PK Pressure Washer Pump Oil - 1...
Resists foaming and aeration; Protects against rust; Helps prevent sludge
$17.18

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