If i sent to other workshop for servicing maintenance and use other engine oil, will it void my all warranty?

Normally service at perodua cost 100+
If outside workshop cost how much ya?

It is safe when i bring myvi to service and i pass the spark plug to them to change for me?

i bought spark plug from outside. Let the service centre change the spark plug.
Becoz we not able to get near the repair area, i fear they will use cheaper version to insert. take away my spark plug.

Will high speed balancing will get rid the vibration on the steering wheel?
My steering will vibrate after 110km/h.

You guys do anti rust every year? Service centre don't charge right by using the warranty ticket?

I search from google those vibration on steering wheel when high speed will need to do high speed balancing.
dunno what is on wheel balancing. I believe all Myvi also have this vibration too.

In what situation we will do anti rust? Underneath car all black black... duno how to see.

Dunno why after service my car at perodua, the car like no power and become harder.

Before service, i change drop in air filter so power and lighter. Now change engine oil and change spark plug to iridium, lose power.

Hi.. Sent my car for checking at perodua service centre. Request high speed balancing, they said dunhave. The problem occur when I got the car. How lah like this? They ask me to do outside. My car is 1 year plus.

I know tyre shop can do but just feel very strange they got alignment balancing but dun have high speed balancing.

Tot can get it free service from perodua sc becoz the steering vibrate already during high speed when i have received the car long time ago. Tot was normal.