Major service

[Tinuva]

1. depends on the engine really

2. see above

3. it is a design choice, even same brands uses both depending on the vehicle

4. they do, but less than the belts, usually only on cars where you will do beyond 200k

 

[Recruitsmiths]

If you inspect any cam belt carefully, you'll find it is designed and fitted with re-enforcing, grooved into the belt.
So, designed to last about 100 000km.....however any oil or fuels spills on the belt can reduce its strength and hence the life span...

But R11K....is definitely too much..!