Castrol GTX 00011-42 Motor Oil, 5W-30, 1 L Brown

The modern world creates difficult challenges for engines. Poor fuel quality, heat and tough driving conditions can all lead to sludge that potentially shortens engine life. Sludge is a sticky deposit that builds up in an engine's oilways and it can prevent the oil from protecting the engine. Castrol® GTX® ultaclean with its proprietary sludge buster is our cleanest GTX ever. Its unique double action formula cleans away old sludge and protects against new sludge formation, giving you more control over today's challenging conditions.