STP Ultra 5-In-1 Fuel System Cleaner is a premium formula designed to restore engine performance, remove deposits, improve fuel economy, and reduce emissions. Suitable for petrol engines, it cleans the entire fuel system in one treatment.

Usage: Pour the full bottle into a nearly empty fuel tank, then fill the tank with petrol. One bottle treats up to 60 liters of fuel. Use every 6,000 km or as part of regular maintenance.