Keeping your outdoor power tools clean and tidy can aid in their use and longevity. NEW Varioclean by STIHL can help make this task much easier. Varioclean is a water based, alkaline cleaner developed to dissolve and remove difficult substances like resin, oil and grass stains. It is ideally suited for cleaning filters, saw chain, guide bars and machine housings. Using Varioclean on a regular basis will help keep your outdoor power equipment in top-notch condition.