@Xulfiqar, How come warranty is void?
What next? Will they recommend a specific suit to be worn by the driver which is provided by them?
For God's sake, why don't you understand? They are playing bluff with you in order to just sell their own brand of cheapo oil. Do you seriously believe that they will honour their commitment, if God forbid you ever need to get something expensive replaced under warranty.
Personally, I don't bother. Toyota warranty is sh**.
It was probably 15 years ago. I got replaced an A/C condenser under warranty from a 3S Toyota dealer. What they actually did was to remove a condenser from one of their in-stock new vehicles, installed that one in my car. And the very leaking condenser they removed from my car they installed in that new vehicle.
This is how Toyota Indus warranty works. After that incident, I pay from my pocket even if some replacement comes under warranty. Go figure!