Oil is too small a word for it. Thin in cold, thick in heat; cooling, smoothing, protecting: pliant as liquid, tough as steel, always busy under gigantic stress. It is the result of over eighty years of single minded technical genius. More than just an oil, it is Castrol GTX - Liquid Engineering.

Put it in Your Engine

Liquid Engineering from Castrol Classic Oils - the original is back. For young and modern classics.

Castrol GTX Classic 10w/40