Read from somewhere:
1) Don't fill up to full tank because car has to carry that extra weight of a full tank. Not sure what is the recommended portion of full tank to fill up.
2) Don't leave until near empty tank before going to petrol station. Go when 1/3 full. Something about engine not getting enough petrol when too little petrol in tank.
3) Don't fill in petrol when there is a petrol tanker topping up the petrol tanks in the station. Something about sediments entering into your car and wrecking slow, gradual havoc.
4) When you filling up, fill in the petrol slowly to reduce petrol loss by vapour.
What do you think?
1) This one is chicken and egg story. Some say to fill full tank, so less evaporation as less space to evaporate?
2) This is due to some cars having the petrol pump in the tank itself, and when the level is down or too low, when in a corner, the pump may suck in air, and prolong use in this manner may damage the pump.
3) Not havoc, but you pump in dirty petrol
4) But the pumps are calibrated, so fuel going into your tank either fast or slow is the same. I would say the longer you left the petrol cap open the more fuel will evaporate.
So more pros and cons for your thinking cap.....