L2501 HST with front end loader. How much does the loader add to the fluid capacity? Just did my 400 hr service and have added about 8 gallons (manual says 6.2 gallons). I kept an eye on my sight glass while adding above 7 gallons but the black line hasn't appeared in the sight glass yet. It is on known level pad and after warming up I let it cool for 30 minutes.