you can change your dealer, warranty book is for use in entire country, not to specific dealer..
My personal opinion is that you must change oil at 5000km if you really like your car..
we got both altis n xli n we change oil at exact 3000km thats why our car still performs like brand new.
plz never take your car to toyota dealer for oil change or regular checkups...
their regular checkup is as follow:
1) looks for all lights whether working properly or not.
2) wiper function
3) floor mats present or not
4) coolant level.. (if its low they will charge for refilling)
5) wheel caps
bla bla bla,, unnecessary checkups..
for engine tuning they will charge you extra,
wheel balancing: extra money n lot more then local market
and like wise...
you should only consult them if you have problem regarding any component of engine which is malfunctioning, or if window glass doesnt operate properly, else for minor works, always consult your local mistry...
like a family doctor n lawer, one should also have a family mistry..