What type and size extinguisher for commercial vehicle?

For commercial vehicles, a Class B fire extinguisher is typically recommended, as it can effectively handle flammable liquids like gasoline and oil, which are common in vehicle fires. A size of at least 2.5 gallons or 10 to 20 pounds is advisable for adequate coverage. Additionally, if the vehicle is used to transport materials that could lead to electrical fires, a Class C extinguisher may also be necessary. Always ensure that the extinguisher is easily accessible and regularly inspected for compliance with safety regulations.