Castrol GTX is one of the world’s most trusted engine oils. It protects against problems that your engine faces everyday.
Severe driving conditions such as heavy traffic, combustion contaminants, harsh weather conditions and exceeding oil change intervals can all cause the build-up of a thick, tar-like substance called sludge. If untreated, it can rob an engine of power and, ultimately, its life.
Castrol GTX with its Double Action formula, is formulated to extend the life of your engine by preventing the harmful build-up of sludge, reduce oil deposits and protect your engine.
Learn more about the range of GTX engine oils available and find the right product for your vehicle.
Castrol GTX is one of the world’s most trusted engine oils. 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 vital oil-ways and it can prevent oil from protecting the engine. Castrol GTX ULTRACLEAN has synthetic technology to deliver superior performance. Its Double Action formula cleans away old sludge, and protects against new sludge formation, giving you more control over today´s challenging conditions.
Get an insider view on how we tested the product in world class facilities for 100,000 miles to prove GTX ULTRACLEAN keeps engines clean and prevents sludge formation.