Does anyone know what goes in the small container under the cover of my sthil re530w hot water presure washer?

my presure washer is a sthil re530w it is diesel under the cover i have a littile resevoir on the top could anyone tell me what goes in this ? i have a pannel lit up telling me to fill up but i dont know what with it looks like 2 stoke oil but its not that . it is a hot/cold presure washer that runs on diesel and electric . the diesel tank is in the bottom and the cleaning fluid goes in the front in a littile red resevoir . thanks

Answers:
Hi,

lubricant for the pressure pump, try a local pressure washer dealer or whoever you buy your detergent from for some
a little family of tiny people live there so be careful

The answers post by the user, for information only, UKQnA.com does not guarantee the right.

  • Renault Megane.can a mechanic no-hoper like me change a coil without causing major problems?
  • what are the rules about using headlight in town at night?
  • when did the law change allowing cyclist to ride through red lights?
  • What is the cheapest intensive driving course around?
  • The screen wash motor seems to have packed in (no noise when activated)?
  • how do i know my bike's rings are broken?
  • i need new tyres for my bandit 1200s 55reg which are best?
  • Why does my gear stick squeak?
  • my company has fitted a tracking device to my works vehicle .how can i avoid being tracked all the time?