timold said:If you have problems with your valves!!![/size]
Valve oil is not always the answer - you may just have a problem with your valves!
Certain instruments (not nameing names) have always had not so good valves and the best answer is to have a brass repairer to have a look at them to sort them out, the valve is normaly sorted out with some "lapping-in" paste. I have found this to work every time!!.
Try not to use washing up liquids or "Comfort" as they have salt in them and long term eat away at the valve.
The best oils to use are:
Za-Ja (both having a cleaning agent in them which breaks down the bacteria)
If anyone needs more advise I would be happy to help.
Band Instrument Specialist