How do I Change oil on husky 2600 psi pressure washer

SOURCE: How much oil in pump...Craftsman 2200 PSI pressure washer

Hello:
Best to use NON DETERGENT 10W30. Be sure you fill the reservoir only 1/3 to less than 1/2 full.

SOURCE: 2200 psi husky briggs and stratton pressure washer

After a long none use, I tried to wash my driveway and powered on the washer,it did, but when i tried to engage the power washer by pressing the wand lever, it did not engage. What can I do to get the power washer working?

SOURCE: oil for a troy bilt 2550 psi pressure washer pump

What fluid and how much is required in the Troy-Bilt 2550 power washer pump?

SOURCE: how to change oil in a pressure washer

From the manual CleanShot 2050 Briggs and Stratton

Change Pump Oil
1. Drain engine oil and fuel from pressure washer
2. Use an 8 mm allen wrench to remove black pump oil cap between high pressure outlet and garden hose inlet.
3. Tiltl pressure washer to drain oil into an approved container until it drips slowly from pump.
4.Tilt pressure washer in opposite direction and empty premeasured pump oil bottle into same opening (a small funnel may be helpful) [THIS IS WHAT THE MANUAL SAYS-NOT CLEARLY WRITTEN IN MY OPINION OR WRITTEN BY SOMEONE FOR WHOM ENGLISH IS A SECOND LANGUAGE]
5. Install black pump oil cap and tighten firmly.
6. Set pressure washer in upright position. Add fuel and engine oil.

From the engine manual use synthetic 5w-30, 10w-30 from -20 degrees F to temperature of 100 degrees F.
Change oil after 5 hours of operation initially. Before tipping to drain oil, remove fuel from fuel tank by running until tank is empty. Remove oil cap and dipstick and tip engine. Keep spark plug side up. Or remove drain plug from the bottom of pressure washer with a ratchet and square extension and drain oil from bottom. (fuel does not have to be removed)

SOURCE: Oil

Remember when your searching for something you can't find the internet is always your best bet. You should also use a good search engine; www.bing.com is one of the best search engines I have ever used. I searched some stores that have the oil your looking for, one online store is www.amazon.com and if you have one near you and they also carry it at Sears. The grade of the oil is definitely weird, 75W90. Also if you would like to look for other stores that carry it go to Bing and type "Briggs & Stratton Pressure Washer Oil" into the search bar.