If you're into minimizing petrol consumption...

Here's what you can do at the petrol station:

1. Pump petrol when the temperature outside is cool, e.g. at night or early in the morning.


When the temperature is hot, petrol will expand. When the temperature is cool, petrol will contract. If you pump petrol when it is cool, you will get more petrol per liter.

2. Do not squeeze the trigger of the petrol nozzle all the way in.


If you pump petrol in the fastest speed, some of the petrol will turn into vapour. The faster the speed, the more likely the petrol will vapourize. So, be smart. Pump slow. Don't pay for vapour.

3. Do not wait until your petrol tank is nearly empty before filling up.


Always fill up when your tank is half-full. The more empty air space in your tank, the faster the petrol can evaporate. If your tank is nearly empty, the remaining petrol will evaporate at a much faster rate. Therefore, you are "wasting" the last few liters of petrol that you have.

(I'm not quite sure about this tip. I think the weight of the tank compensates for the rate of evaporation.

If you always fill up your tank when it's nearly empty, you don't have to lug around half a tank of petrol all the time. Less weight = less petrol consumption.

If you always fill up your tank when it is half full, you will have less problems with petrol evaporation. But you'll have to lug around more weight in your tank. So, I guess this could cancel each other off.)

4. Do not pump petrol when the fuel truck is pumping into the storage tanks.


Petrol in the storage tanks may be stirred up. You may get some of the dirt that usually settles at the bottom of the storage tanks.

Here's what you can do with your car tyres:

5. Keep your tyres well inflated all the time.


If your tyres are not inflated properly, your car will have more friction with the ground. More friction = more force required = higher petrol consumption.

6. Pump nitrogen gas into your tyres.


Go to a car tyre shop and ask them to fill your tyres with nitrogen gas. It will cost a few bucks per tyre. It will improve your car's mileage, resist heat build-up and maintain the pressure of your tyres longer. You won't have to worry about keeping your tyres inflated for 6 months easily. This works best if your vehicle is a heavy one.

And of course...

7. Install NGV.


Even if you don't get the RM625 rebate, that "loss" will be covered within 2 months every year through savings.