Gas Pressure washer oil change

I changed the oil last year after 1 hour of use, then again this year after 4 more hours of use. The old oil is very grey with shiny silver particles....glistens in the sunlight.
I have never seen oil so grey colored...usualy old oil is black....

Is this OK and am I just seeing the break in wear of the engine?
The manual says to change oil after 5 hours of use, then every 25 hours...
It's still under warranty, so I;d like to know what to do.

I think this is NOT water, but aluminum that has turned the oil grey.

Thanks for the input - I have 4 months before the warranty is up! WIll use it again and see if the oil turns grey again.

Grey would say to me that you have water in the oil. Would guess a group of seals in the pump are bad. Shiny metal flakes would be something disentigrated inside or is starting to. You could try running another 10 or 20 hours but don't let the warranty lapse without getting a documented complaint.

One thing did you keep this pressure washer in a heated building all winter? If not the waranty may be void.

JM2CW

jt

You will do that little engine and yourself a big favor if you use only B&S or Mobil 1 multiweight SYNTHETIC oil. Multiweight SYNTHETIC motor oil is highly recommended by B&S for a Briggs engine for any load and any temperature conditions,unlike mineral oil where B&S recommends different weight mineral oil for different operating temperatures. I have been using Mobil 1 synthetic oil in all my small engines for 20 years. Oil consumption goes to almost 0 and they start much easier. You will get much longer engine life with less chance of scoring a piston or cylinder if you overheat the engine or rev it up too soon while cold.