I am thinking of the same thing. I want to quit my day job and drive Grab as well. I just started Grab on thursday. Thursday night I fill in petrol full tank around rm60-rm65.

I managed to get two trips totalling amount RM21 fare on Thursday night. I start driving around 8:30 pm to 10pm.

On Friday, I start at 8:15 am to 10:00 am. Then i took a break. 12 noon i continue until 1 o'clock. Then I go for Friday prayers. Then i drove again from 2pm to 4pm. Then i went to settle some personal business. I continue from 5pm to 7:45 pm. Then I stop. So total on Friday i drove for about 7 to 8 hours. My total fare was RM 120.

By this time, my tank (Axia auto) left half tank. Commission to Grab 25%. You do the maths. I'm quite disappointed really. But I ask in my whatsapp group, they say my total fare was quite low for a 7+ hours of driving. Maybe I wasn't so lucky. I did 14 jobs on Friday but most of the jobs are below RM10.