hello guys..need yours opinion here..is it need to service (lub) every 3 month/ 5000km (semi syn)? as for me,rarely use the car.. so i would like to use fully syn lub for the next service, can it really go to 6 month/ 10000 km? so we can save cost for labour charge (twice a year only) based on the manual book schedule..btw my waja is man. trans.tq