assume standard service, engine oil & filter will set u back about RM 150 per service for Er6, for Z750 roughly u just double it..why?

ER6 2 Cylinder
2 bottle 1L Engine Oil (Rear tyre 160) 50 MPG (less fuel consumption)

Z750 4 Cylinder
4 bottle 1L Engine Oil (Rear tyre size 180, cost more) 40 MPG ( ++ fuel)

with ur distance from JB to Penang sure need few stop..

Er6 riding position were most comfortable for the majority. Unless u got urself a Goldwing

I goes back ipoh couple time in a week..i take me roughly 1 n half hour with 10 minute break for smoke

U must be riding more than 200KM/h i guess. Wind resistance not that good for naked. Get urself a nice Windshield..sure feel better