Oil for predator powered pressure washer?

[Plumb Bob]

High HTHS 30, or 40-grade, such as ESP, A3/B4, or HDEO.
50-grade will offer better wear protection, but it could affect the BHP, depending on run time, temperature, etc.

 

[FordFETruck]

I have had a predator 212CC on my small pressure washer for the last 7 years and have run all kinds of oil in it. It's never burned a drop and it's not picky. I've run 10W30, HD 30, 15W40 in it with no noticeable difference in operation or how it looks coming out. I've been gravitating back to HD30 in everything air cooled though. I have a 420CC Honda clone on my big unit and have only run one oil change in it so far. I saw glitter come out the first 3 oil changes on the predator 212, nothing since though.