Subaru legacy overheating
I have a 91 Subaru legacy overheating only when
driving not sitting on idaling
Have the system pressure tested, it coukd be a bad radiator cap on or the fans are not coming on at temp....possible clogged radiator
Then again you have a Subaru so the head gaskets are suspect.
HGs are not a weak point on this old 2.2i motor, but it IS a quarter century old!