Mobil 1 x1 5W-30 Advanced Full Synthetic Engine Oil is designed to keep your engine running like new by providing exceptional wear protection, cleaning power and overall performance. Mobil 1 x1 5W-30 meets or exceeds the requirements of the industry's toughest standards and outperforms our conventional oils. Mobil 1 technology comes as standard equipment in many different vehicles, including select high-performance vehicles.