Automotive diesel oil (ADO) is a type of diesel fuel used for cars. It has an energy content of 45.6 GJ/t by weight and 38.6 MJ/L by volume. The document outlines the standard characteristics and limits for ADO, including a minimum flash point of 55°C, maximum water and sediment of 0.05% by volume, and maximum sulfur content of 0.035% by mass. It also lists procedures for transactions between a buyer and seller of ADO, including the buyer issuing a purchase order and letter of intent, the seller providing a full corporate offer, and delivery commencing according to the contract schedule.