Castrol GTX is a premium conventional motor oil that's been helping extend engine life since 1968. Its double-action formula clears sludge and stops sludge forming.
Sludge can block your engine’s vital oilways like cholesterol, and if untreated, can rob an engine of its power and ultimately its life.
Castrol® GTX® is a premium conventional motor oil that has been helping to extend the life of engines since it was first introduced in 1968. Its double-action formula cleans away old sludge and prevents new sludge formation even more effectively than tough industry standards demand.
Getting it right at every oil change is essential. Your owner’s manual will tell you which industry specification, type and grade of oil the manufacturer specifies, and we’ve also made it quick and easy to see all your options and make the right choice with our Oil Selector tool. Try it now.