Acx1688 SG 196e buses are a bit strange though... used SBS1929R on 1st day, then saw SBS2769D[sv36] & SBS965S
28_29_293 SG 196e uses watever buses avilable at bedok north depot i guess. saw 654P along simei ave (junction of upp changi rd) with 14e behind @ 12pm plus 2day.