Castrol Radiator Cleaner

Castrol Radiator Cleaner is designed to help restore efficient cooling system performance by removing internal build-up that restricts coolant flow. It works by dissolving corrosion, oil residues and deposits that can accumulate inside your radiator and block key passages, leading ...Castrol Radiator Cleaner is designed to help restore efficient cooling system performance by removing internal build-up that restricts coolant flow. It works by dissolving corrosion, oil residues and deposits that can accumulate inside your radiator and block key passages, leading to reduced heat dissipation and potential engine overheating.

- Explore the key features that make this cleaner an effective choice for maintaining your vehicles cooling system:Surfactant-Based Cleaning Additive: Formulated with a blend of cleaning agents that break down rust, scale and internal residues, this helps to restore consistent coolant circulation and reduce the risk of overheating. - Oil and Grease Binding Formula: Uses specialised emulsifiers to bond with contaminants such as oil and grease, allowing them to be fully removed when the system is drained, so your fresh coolant performs as intended. - Simple 30-Minute Engine Cycle: Requires just a single 30-minute run time during engine operation, allowing the active ingredients to circulate through the system and dislodge built-up deposits for full flushing.

- System Compatibility: One 250ml bottle treats systems up to 10 litres in capacity, giving you straightforward coverage for a wide range of standard coolant circuits. - Flush-Ready Composition: Designed to be fully drained and flushed with clean water after treatment, leaving no residual cleaner behind that could interfere with new coolant performance. - This cleaner helps you deal with blocked or inefficient cooling systems in a structured, step-by-step process.

It's a useful addition to your maintenance toolkit when you're preparing to replace your coolant or resolve temperature issues. Adding this to your service routine helps ensure your cooling system stays efficient, reducing engine stress and supporting longer component life.250ml Bottle