The rule of the road in the Phils is, if it's BIGGER than you it has right of way, otherwise, no other rules.
I used to drive a car in Manila and a Scooter in Angeles City.
The longest trip I made in a car was from Angeles down to Legaspi and back.
Took about 10 hours each way, but enjoyable once out of the city.
I ALWAYS wore a helmet on the scooter (It's the law anyway, despite what the locals do), as my life is quite important to me.
I also use a pushbike a lot when I'm over there.
Best to have a car with smoked windows, so you attract less attention from the cops looking for merienda money.
