what is ow40 oil
About this item. Mobil 1 0W-40 is an advanced full synthetic engine oil designed to keep your engine running like new by providing exceptional wear protection, cleaning power and overall performance.Mobil 1 meets or exceeds the requirements of the industry's toughest standards and outperforms conventional oils.. According to Mobil 1 website, this 0W-40 oil does NOT come in 5 quart jugs. There are no plans for Mobil 1 to make this type of oil into 5-quart jugs.