Originally posted by Cockboy:
Cock lah, it should be 100,000 km or so. If every 5000 kim, must be for racing car lah...
wah, i'm surprised ur engine still running

think u 5 years change engine oil once?
transmission fluid hardly needs any replacement. juz top up will do. depending on whether ur car auto, manual, got traction aiding devices (lsd, sayc etc) u may have to changed those respective fluids more frequently then u would for a normal gearbox as they undergo more mechanical stress in daily operations.