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 oil-ways and it can prevent the oil from protecting the engine.
Castrol GTX Ultraclean's synthetic blend technology - with its proprietary sludge buster - is our cleanest GTX ever. It's unique Double Action formula cleans away old sludge** and protects against new sludge formation, giving you more control over today's challenging conditions.
Help extend the life of your engine with GTX Ultraclean.
Exceeds manufacturer's warranty requirements for applications requiring API SP/SN PLUS (Resource Conserving) and ILSAC GF-6.
Castrol GTX Ultraclean also delivers:
- 1.4X better sludge protection compared to tough industry standards*
- Advanced protection against viscosity and thermal breakdown
- Superior protection against high temperature deposits
- Premium quality base oils and anti-wear additives that help extend the life of your engine
* 1.4X cleaner than the industry standard as measured in the API SP Seq. VH Sludge test
** When tested in engines with high level of sludge