by diluting, e.g. by addition of fuel (lubrication of machines or engines in general, of internal-combustion engines F01M)

Full Title

Arrangements for conditioning of lubricants in the lubricating system (cleaning of lubricating oil, lubricating compositions C10M) > by diluting, e.g. by addition of fuel (lubrication of machines or engines in general, of internal-combustion engines F01M)