HT04

can anyone please help. im a little concerned about the coolant in my 04' STi. for starters, its a very hot day. i started my car up and within 20 mins the cooling fan kicks in. the temp guage shows a fraction under the middle. i then look at the clear coolant bottle next to the radiator, and the level is about two inches above the max line. although when cold it is bang on the max line. im also worryed that the oil temp is never below 90 when the engine is warm. all of this is while the car is sitting idleing. not being driven.

the cooling fan seems to then come on every 5 mins or so.

does all this sound ok ?. im very worryed. how do i tell if i have an airlock ?.

many thanks

dan