Hi everyone,

I recently changed the spare tire for the left rear one, i'm new to the auto world so i got a few concerns:
- Is this recommended to keep running with the new left rear tire or i need to change all the four tire or change the right rear tire? i heard some myth that the two rear tires need to be the same in condition ?
- As the old tire flatted out (now it becomes the spare tire), therefore, i need to change it, i need some recommendations about what type of tire should i looking for and where is the most reasonable place to find one in Sydney inner west area the recommended tire is P215/60R16 94V
- The current tires from the previous owner is Bridgestone ecopia, but the spare tire i changed is Michelin, is this ok to keep running like this ?
- Just another minor questions, the alloy rim of the spare tire doesn't come with the centre cap, how can i remove the centre cap of the old one to place into the old one? should i just push really hard from the back of it?

Thank you very much, all of the comments and feedbacks are highly appreciated!