Deisel in hyd. Tank

[soleteck]

What would happen if you accidentally put like 2 gallons of deisel in the hydraulic oil tank which might be about 15 gallons and ran for say 30 minutes

 

[OzDozer]

Diesel has lubricating properties, otherwise your fuel injection pump would seize up.
2 gallons of diesel in 15 gallons is merely going to thin the oil a little, so you will find the hydraulics work faster when cold - but with the thinned oil, you're likely to see more hydraulic leaks.

 

[soleteck]

I forgot to mention it's compacting equipment a roller

 

[DMiller]

Drain refill and change filters. Will not ever get it all out but will have majority, no harm no foul and a early fluid swap.

 

[92U 3406]

Change fluid & filters and go back to work.