Maximus Hybrid Engine Cleaner - 500MLMAXIMUS HYBRID ENGINE CLEANER 500ML Maximus Hybrid Engine Cleaner 500ML is a cleaning and maintenance agent for hybrid engine systems of high quality. The advanced formulation of the formula features sludge, carbon deposits and harmful residues to ensure peak performance and fuel economy. Great for hybrid cars as it lets your engine stay lubricated and can even reduce long term wear on your engine. Key Features Specially formulated for hybrid engines