One of them is the use of black pepper to seal small radiator leaks. When black pepper is introduced into the system, the small particles travel to the leak where they expand and seal the leak. The pepper รขโ‚ฌยฆ

To use it, add a tablespoon of black pepper to the radiator, then top off with coolant and run the engine to allow รขโ‚ฌยฆ