However, at 2.5K, you don't need to change the oil. But if you feel rich and kiasu (joking ar.. don't angry).... there is no harm by changing the oil & oil filter, although I wouldn't think its necessary as its stipulated in the service recommendation.
ye la alan, why need to waste money if the manufacturer guaranteed the oil is still gud, dun wanna be kiasu. so the SC will not change anything at 2.5K rite, just inspect? might as well i use the money to buy new wheel caps replacement hehe.
btw ur GT is shod with pirelli rite? hope the pirelli tyre shop wudn't mind coz mine is conti