Mobil Super 3000 X1 5W-40 is a synthetic motor oil designed to provide extended engine life in a wide range of makes and models of vehicles, as well as enhanced engine protection over a wide temperature range. Mobil Super 3000 oils are formulated to provide effective protection. ExxonMobil recommends the use of Mobil Super 3000 X1 5W-40 if severe driving conditions occur regularly to prevent damage from heavy and frequent use.