when to replace the head gasket

What is your question?

My Toyota Rav 4 has some minor visible signs of an oil leak. No problems with the performance of the vehicle. Should the head gasket be replaced to prevent problems? The vehicle has only 49,000 miles but it is 13 years old.

What makes this problem better or worse?

nothing

How long has your 2005 Toyota RAV4 had this problem?

just noticed it