I use the regular household cleaner. It comes as a concentrated, high-strength solution, but the label has instructions for mixing weaker solutions for general cleaning. I mixed some of the weaker solution in another spray bottle for cleaning frames, etc. At full strength, it will disolve old dried grease and sludge. I had some old deraileurs that were covered with dried grease that resembled dental plaque. After soaking a few hours in SG, they rinsed clean.