What oil do you put in Peugeot 307hdi?

For a Peugeot 307 HDi, it's recommended to use a low ash, fully synthetic oil that meets the specifications of ACEA C2 or C3. A common choice is 5W-30 or 0W-30 engine oil, such as those from brands like Total or Mobil, which are formulated to provide optimal performance and protection for diesel engines. Always refer to the owner's manual or consult a professional to ensure you select the correct oil for your specific model and engine.