Tri-Flow Foaming Citrus Cleaner/Degreaser 14oz: Quickly clean and degrease even the dirtiest drivetrains with Tri-Flow Citrus Cleaner/Degreaser. Its high velocity, precision valve blasts dirt and debris while the powerful foaming action loosens grease, oil and hardened deposits, leaving surfaces clean and residue free. Designed with the environment in mind, this water-soluble, biodegradable, citrus-based formula can easily be rinsed with water.