Kärcher - 62880500 - 1-Litre Bottle of Oil for Kärcher High-Pressure Washers

Good. Works

Expensive for what it is, but did the job and contains enough for 10 pressure washer pump services.

Hopefully this is the proper oil for my Karcher K4 im trying to salvage.

Very good product

This is the factory required replacement oil for Karcher's pressure washers. For mine, the refill volume needed is 100 ml so this 1 liter container container will provide 10 refills. The oil is expensive for a non-detergent, synthetic, 15W40 oil of 1 liter in volume. I know of one US made equivalent that is $10 less costly for a similar container size. If frequent flush and refill was required by Karcher, this container size would still be excessive given the expected life of the pressure washer itself. So, IMO, good oil, but too much and too costly.

OE pump oil, correct stuff when you rebuild pump.

This is non-detergent, specified by the OEM to use. Simpson sells the same oil bottled with their brand, but their customer service told me back then that they ordered the oil from Karcher. This is less expensive than the SImpson's rebottled oil. When running, the oil turns white. It returns to light amber after it cools off.