When adding SAE 30 oil to new pw, do we add to the pump reservoir only or do we also add to the two oil inlets on either side of the engine housing?

There is an oil dipstick on the side of the engine. Remove the dipstick and check the oil on the dipstick.
The oil should be about half way up the threads on this engine.
If you need to add oil you can use SAE 30 or a 10W30 Oil.

Hi and welcome to FixYa, I am Kelly

From reading everything I can find, i.e User's manual & parts manual the only thing you add oil too is the engine. The pressure pump does not have a liquid sump.

You can look at parts here detail D:
http://www.ereplacementparts.com/dewalt-dpd3100-pressure-washer-parts-c-1009_7440_7445.html

So too add oil to the engine you would remove the dip stick from the crank case located on the opposite of the side of the engine as the oil sensor.

I recommend you use 30 WT SAE oil for 3 oil changes then on the 4th oil change use an HD 30 WT oil. The oil drain plug is located in the center of the side of the engine crank case base. On the 5th Oil change switch back to SAE 30 WT oil. Oil brands are not really important. They all have to meet SAE the same standards to carry the label of SAE. (Yes you can use a generic 30 WT SAE oil )
Thanks for choosing FixYa,
Kelly

you can use sae 30 in the motor and hydraulic oil or gear oil in the pump.
just note that there may be two oil filler holes on the motor.

1987 PONTIAC FIERO 2.8L 6-cyl Engine Code [9]
All TEMPS......5W-30 SAE 5W-30 is preferred.

CAPACITIES: Engine, without filter..........3.8 liters, Add extra oil when replacing filter. After
refill check oil level. Oil Drain Plug.....15-20 ft/lbs

Thank you for using fixya and good luck

I don't know about that brand of power washer.
We used several types of power washers over the years, and they each called for 20 or 30 weight non-detergent oil in the pump. SAE 20 or SAE 30

The pump oil comes about half way up inside the pump.

The engine oil is 10W30



Do not turn a power washer on its side or upside down or oil will run into carburetor.

Pacific Hydrostar is another pacific rim product that has no website, and no manuals online, and nobody to contact, and no parts available. These machines must be made for the throw-away user.

Pump oil comes about half way up inside pump housing > pump oil is 20 or 30 weight non-detergent oil SAE20 SAE 30
Engine oil comes half way up dip stick > engine oil 10W30

Do not turn power washer on its side or upside down when draining oil, or engine oil will go into carburetor and machine will not start

ADD SAE 30 SMALL ENGINE OIL. 18oz TO 20oz

SEARS SALES A 20oz BOTTLE OF CRAFTSMAN SAE 30 OIL FOR $2.59

Power washer needs oil 2 places.



The pump head has a plastic window on side of pump. Oil should fill to middle of that window. Pump should have 20 or 30 weight NON detergent oil. SAE20 SAE 30 I believe. Auto parts store will know which is NON detergent.

The engine oil is ordinary 10W30. We used to change oil after each painting season by tilting engine to the side. Do not turn engine on it's side or upside down or oil will run into carburetor.

I don't remember exactly how many quarts we put back. Maybe 2? Fill up reservoir until oil is about half-way up dip stick.

Oil Type. Use new good quality oil such as SC, SD, and
SE grades. The oil to be used depends upon the temperature
at which the engine is operated:
Summer: (temperatures of over 40 degrees F/10 degrees
C) SAE 30 or SAE 10W-30, SAE 10W-40
Winter: (temperatures of below 40 degrees F/10 degrees
C) SAE 20 or SAE 10W-30

Manual here:

http://www.powermate.com/pdfs/2007/11/12/pm0401850-52.pdf

If your engine is a 4.0 it uses 5w-30
If your engine is a 5.0 it uses 10w-30