Havoline Ultra S 5W-40. Havoline Ultra S motor oils are ultra-performance, all-season synthetic lubricants of 5W-30 and 5W-40 viscosity grades. They are made based on the synthetic base stocks and innovative additives and have low ashness, low content of phosphorus and sulfur (Low SAPS oils). Havoline Ultra S oils are suitable for use in gasoline and diesel engines of passenger cars and diesel engines of light trucks.