What oil do you use for Peugeot 306?

For a Peugeot 306, it's generally recommended to use a high-quality engine oil that meets the specifications of ACEA A3/B3 or A3/B4. The most commonly used oil types are 10W-40 or 5W-40 multigrade oils, depending on the engine type and ambient temperature. Always consult the owner's manual for specific recommendations based on your vehicle's engine variant and driving conditions.