Overview

Castrol GTX Ultraclean is our cleanest GTX ever! Specially formulated for the rigors of modern driving its GTX for the 21st century.Castrol GTX Ultraclean is a synthetic blend engine oil available in 0W-20 5W-20 and 5W-30 grades. Its double-action formula has been proven to clean away the sludge that can block engine oilways and helps prevent new sludge formation thanks to its synthetic technology. In fact it provides up to 1.4X better sludge protection than is demanded by the latest industry standard. If keeping your engine clean is important to you its good to know that no other oil keeps engines cleaner.Features/Benefits: 1.4X better sludge protection than required by the latest industry standardAdvanced protection against viscosity and thermal breakdownSuperior protection against high temperature depositsPremium quality base oils and anti-wear additives that help extend the life of your engine When tested in engines with a high level of sludge As measured in the Seq. VH Sludge Test vs. API SP test limitsSpecifications exceeded in the 5W-30 Grade include API SP/SN PLUS/SN ILSAC GF-6 and meets Ford WSS-M2C946-B1 & Ford WSS-M2C961-A1