One thing for sure if you're driving an old car at the same time "project car" is that you constantly need to check the condition from time to time. Not in terms of servicing the car like oil change and those, more like visual inspection from the engine bay, underneath the car, wherever you find necessary. Leaks or something that falls off can be deadly, even just a small bolt.

If something fell off while you were driving, that can't be helped. Couldn't risk your life to walk out of the car in the middle of the road just to pick that part (or small piece of bolt) up am I right?

Luckily for me, I visually inspected my engine bay after a night run at Genting Highland for a test drive. i noticed that the radiator cap from the reservoir tank fell off, it was white color. Couldn't find a replacement for that (I thought it was just a cap like Spritzer mineral water lols)

Thank god there are no leaks, maybe the car's temperature is still lower than usual because of "genting" and night. And thanks to my friend who got a spare for the cap