Which coolant to use for FD1?

[nny911]

lol oops ive been mixing

[curtis265]

wait wut happens if u mix..?

different expansion/compaction going on?

[liquid23]

any problems if type 1 and type 2 are mixed?
i don't know what coolant my car (07 FD2) uses but when the guy did my intake he added the type 1 (green) coolant in because some came out when pulling the original intake apart.
should i flush it all out and put new coolant in?