I'm currently building a *very* early F-15A. So early that it is in Air Superiority Blue.
The interior of the wheel wells and Bay 5 (the avionics bay behind the cockpit) are painted in a strange metallic blue-green colour (Xtracolor X159). Fair enough.
However, that seems to be a McDonnell Douglas colour used exclusively for new build F-15s. What about F-15s that had undergone major servicing at a USAF facility? Do they still use the blue-green colour?