I'm not sure what you mean.
I think you are asking if your power washer needs oil mixed with the gas.
Does your machine have a oil reservoir below the engine?
If there is a place to put engine oil, then your engine runs on ordinary gasoline.
The pump oil is SAE20 or SAE30 non-detergent motor oil > oil comes up half way inside box.
The engine oil is 10W30 motor oil > oil comes up bit more than half way on dipstick
If you want to pump gas using your power washer, the answer is no.
If you are asking another question altogether, feel free to answer the post with a clear question so it can be answered satisfactorily.
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