Yes, O-rings typically require lubrication for optimal performance. Lubrication helps reduce friction between the O-ring and the surfaces it contacts, extending its lifespan and improving sealing efficiency. The lubricant acts as a barrier, preventing excessive wear and ensuring smooth movement. It is important to select a compatible lubricant that suits the application's temperature range and the O-ring material. While some O-ring materials are self-lubricating, lubrication is generally recommended unless specific circumstances dictate otherwise. Consulting manufacturer guidelines and considering the specific application requirements are essential for determining the need for lubrication.