Hi there, i need to know the oil type for the bottom of the engine on a briggs n stratton 3.75 hp speed clean pressure wahser 2000 psi 1.9 gpm type 3800cp model 020238 thank yourc

most rarely exceed 2600 psi as these can blow right through your hand..gpm maybe 40-45..there should be a plate with all that on the unit..

3,000 PSI, 3.5 GPM

Could be the pump is low on oil. They do have oil in the pump itself. Check that.

Square socket on the bottom of the engine. I think a 3/8 extension on a ratchet is correct.

Yes, the low oil pressure shutdown switch would cause the problem.

The first thing I would check would be the oil level, to make sure you didn't put in too much oil. If the oil level is correct, it could be a stuck piston ring, letting oil blow by the piston, and out the exhaust. If this is the case, you are going to have to tear down the engine.

Hope this helps!

We power washed houses for years with a 2400psi machine. The machine weighed about 90 pounds. 1 strong man could pick up the weight, but usually it took 2 men to unload it from the trailer.

A small machine can advertise 2400 psi ... but that is for 3 square inches at a time. The heavier machine shoots a 10" or wider swath of 2400psi.

We ran our machine twice a week for years. We had a honda engine. I'm sure the briggs engine is good. I wouldn't buy a used machine... unless the price was low and it started on first pull. Electric starter on your power washer might be a repair-waiting-to-happen because it is constantly exposed to water and dirt.

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.

The model number is required to get the correct manual.

The Model Number is on the motor tag.
It is in the format XXX . XXXXXX
Where X = a number.

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