In light of the recent hike in the cost of fuel, the following are some tips I read from NST 5 June 2008, by Datuk N Marimuthu, the president of Federation of Malaysian Consumers Associations.
- Only fill up your vehicle in the early morning when the ground temperature is cold. Remember that service stations have buried storage tanks. The colder the ground, the more dense the fuel. When it gets warmer, petrol expands. Thus buying petrol in the afternoon will give you a liter which is not exactly a liter. A one-degree temperature rise is a big deal for business. Service stations do not have temperature compensation at the pumps.
- Squeeze the nozzle’s trigger at a low speed, thereby minimizing vapors created while pumping. Fast pumping will cause liquid petrol to vaporize and get sucked back through the hose’s vapor return mechanism. You are getting less for your money.
- Refuel when your tank is half full. The more fuel in your tank means less air occupying its empty space. Petrol evaporates faster than you can imagine. Petroleum storage tanks have an internal floating roof. This roof serves as zero clearance between the petrol and the atmosphere in the tanks, so it minimizes the evaporation.
- Do not refuel when a fuel truck is pumping into the underground storage tank as it could stir up sediment.
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