Leaky capacitors need replacement?

hello shawn3998.....I'm curious how old is the amp?  My RM10 Mk II is 10 yrs olde now....perhaps I should check under the hood at some point.

The guy I bought it from said it was 3 years old.

Which MkII do you have, the fixed bias version (you set the bias) or the cathode bias version (amp sets the bias)? I ask because all fixed bias MkIIs are well over 3 years old (mine is at least 15) to my knowledge. A cathode bias version may be within that time window.

I set the bias.

The guy I bought it from said it was 3 years old.

Looking at how tarnished the solder is, the grey color and cosmetics of the plastic wrap on those caps, and how long they are (much shorter now), and that they’ve already leaked, I’d say more than 3 years old.
Or they were NOS caps of the shelf that were used and not formed, as electrolytics also have a shelf life and need to be re-formed very slowly when new but old.
https://www.youtube.com/watch?v=vA8YksKJSsQ
Boring as bat **** voice on this guy

Cheers George