Using brake cleaner to clean an engine bay is not recommended and can be dangerous. Brake cleaner is a powerful solvent designed specifically for cleaning brake parts, such as brake calipers, rotors, and drums. It is highly effective at removing brake dust, oil, and grime from these components.
However, brake cleaner is not suitable for cleaning the entire engine bay for several reasons:
Chemical Hazards: Brake cleaner contains harsh chemicals, such as acetone, toluene, and methanol. These chemicals can be harmful to various engine bay components, including rubber hoses, plastic parts, and electrical connections. They can cause degradation, swelling, or even fires if they come into contact with hot engine components.
Non-Selective Cleaning: Brake cleaner is not formulated to differentiate between the contaminants it dissolves. It can remove paint, damage wiring insulation, and harm sensitive engine components.
Environmental Impact: Brake cleaner is also hazardous to the environment, and its use for general cleaning purposes is not eco-friendly.
For cleaning the engine bay, it's better to use a degreaser or an engine bay cleaner specifically designed for this purpose. Engine bay cleaners are formulated to be safe on various materials commonly found in engine bays, including rubber, plastic, and metal. They are also less aggressive than brake cleaner, reducing the risk of damage to sensitive components.
Before using any cleaning product, always follow the manufacturer's instructions, and avoid spraying water directly onto electrical components or areas that should not get wet. If you're unsure about the appropriate cleaning method or which product to use, consult a professional mechanic or refer to your vehicle's user manual for guidance.