The Wynns GDI Efficiency Restorer is a 500ml fuel injector cleaner designed for petrol engines. Manufactured by Wynns, this unit effectively removes deposits and contaminants to improve fuel efficiency and performance. With a part manufacturer number of 37593, this product is guaranteed to last until October 2027, providing long-lasting benefits for your vehicle. Perfect for maintaining the cleanliness and efficiency of your petrol engine, this fuel injector cleaner is a must-have for any car owner looking to enhance their vehicle's performance.