tanjun SG 74, 91, 92, 93, 112, 113, 125, 151, 182, 186, 192, 193, 325, and all the Jurong Industrial services. There may be more but these are the bus services that I know that still runs with non aircon buses.
sErviCe17rOx SG i tink 10 oso has sum non-aircon buses..im nt sure abt now..3, 358 & 359 oso has non-aircons sumtimes..
Airbus330Captain SG 6 FAC Feeder services may get NAC buses once in a blue moon. Svc 19 is supposed to be a Air con service , for no reasons , out of the blue , the NAC buses appeared on svc 19 a few years ago. There are a few times SBST put NAC buses on main trunk Full AirCon services but it's rare now adays.
kenny_cai SG I think it's Partial Air Con, but you hardly see NAC buses on it now, considering Service 28 is a high-demand service.
Airbus330Captain SG Svc 28 and 31 are suppose to be FAC but both services has been operating full air con buses on these services so don’t be shock to see NAC Scania on either one or both of the services.
service_238 SG 28 is FAC. it'll be very rare to see NAC scanias on 28 IMO. (more rare than seeing nac scanias on fac services like bedok tampines pasir ris feeders and 3 6 is NAC. its perm fleet is all non-aircon. the 2 perm cac scanias got taken out late last year. now perm fleet for 6 is 3618 3634 3635 3636 3638. any aircon mk3 or scania on 6 is a cameo