Choose the Right Conventional oil for your engine.
CASTROL GTX ULTRACLEAN
Castrol GTX ULTRACLEAN Motor Oil is our cleanest GTX ever. Its unique Double Action formula cleans away old sludge and protects against new sludge formation, providing 50% better sludge protection versus tough industry standards.
Castrol GTX Double Action formula cleans away old sludge*, and protects against new sludge formation better than tough industry standards – helping to extend the life of your engine.
* When tested in engines with a high level of deposits