Rzoil Ceramic Engine Protector is a high-performance engine oil additive that forms a ceramic protective layer on the engine's most wear-prone parts. It reduces metal-to-metal contact, improves heat dissipation, and helps maximize power and efficiency. Suitable for petrol, diesel, gas, and hybrid engines, including turbocharged or high-performance setups. The bottle (300 ml) is designed for 5 liters of engine oil. Add the contents to the oil system; the additive remains in the oil until the next oil change.