What is the primary purpose of lubricating the seal on a transmission filter during installation?

Lubricating the seal on a transmission filter during installation serves the primary purpose of ensuring a tight seal. When a seal is lubricated, it creates a more flexible and compliant surface which allows it to fit snugly against the mating surfaces of the transmission. This lubrication helps to fill in any small imperfections and ensures that the seal adheres properly, reducing the risk of leaks. A well-sealed transmission filter is crucial for maintaining optimal transmission performance, as it prevents fluid from escaping, which could lead to low fluid levels and potential damage to the transmission system.

While the other options may have some relevance to transmission maintenance, they do not directly address the primary purpose of lubricating the seal. Torque loss, ease of future removal, and fluid circulation are important in their own contexts but are secondary to achieving a secure and effective seal during the installation of the transmission filter.