This Restore Kit was specifically developed for aFe POWER's Pro 5R and Pro 10R air filters. Its regular use preserves the air filter’s original performance and engine protection. The POWER CLEANER effectively breaks down dirt and dust without damaging the media, while the oil captures debris during use. Simply apply the cleaner onto the filter element, let it soak, and rinse. Once its dry, the oil can be applied. Its blue color and quick absorbency make it easy to cover the element evenly. Take care to not over-oil the filter