If you have questions about gas pressure washer pump oil, then this page was really written for you! Read below to find out why pump oil is so important, how often it should be changed and what you need to keep in mind when you're buying it.
I know you've heard it before: your pump is the beating heart of your pressure washer. And you need to take care of your pump in order to protect the investment you made when you bought your gas pressure washer.
Making sure you have good lubrication in your gas pressure washer pump, with the right level of clean pump oil, is the easiest and cheapest preventative maintenance you can do to keep from damaging your pump & engine.
If you just bought a new gas pressure washer, your owners manual can tell you when you should do your first pump oil change. Usually, manufacturers will tell you to change your oil after the first 15-20 hours of cleaning - or after 3 months - whichever comes first. (I should mention that there are a few pump types on the market that do not need oil changes, so that's why you always need to refer to your owners manual.)
My personal recommendation is to change your gas pressure washer oil about every 50 hours of use. Or at least once a year.
And you must check your oil level before, and everytime, you start up your washer. Your gas pressure washer pump should have a window (sight glass) on the side which allows you to see the oil level. Or an old-school dip stick.
Find the red dot or two parallel lines, on your oil pump window. Your oil level should be up to the red dot or between the parallel lines. Never overfill your oil above the red dot or parallel lines! Or check and refill the oil level using a dip stick for your guide.
Also, if you store your pressure washer in an unheated shed, during the winter, you'll want to change your oil before you start it up in the spring. And if your gas pressure washer pump oil ever looks milky - change it immediately!
First, never use engine or motor oil for your gas pressure washer pump oil! There's no faster way to ruin your pump and waste your hard earned money.
Make sure that you only use pump oil that's specifically formulated for gas pressure washers. Choose one that's non-detergent (non-foaming) and that has anti-rust and anti-oxidation inhibitors.
You'll find that gas pressure washer pump oil is offered in one quart bottles.
But if you have one of the few gas pressure washers that don't have an oil sight glass (window) on the side of the pump, or dipstick, you'll need to buy the pre-measured bottles of gas pressure washer pump oil that's specified for your brand. See your owners manual for more information.
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If you'd like some good advice on choosing between an electric vs gas pressure washer, read this excellent article at BestHomePressureWasherReview.com.
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