Petrol Grades & Explanations
With prices of petrol escalating, car owners like you should know what type of petrol is optimum for your car and do not incur unnecessary petrol costs. There are various grades of petrol available in petrol stations, usually categorised according to their octane number such as XX 92UL(unleaded). The octane number of petrol actually tells us about petrol's resistance to abnormal or uncontrolled combustion, such as "knock", which occur when using fuel with too low an octane engine for the engine, and if the problem is serious, it could cause engine damage.
Every engine is designed to operate to best performance using a certain octane rating. Many Japanese cars, for example, are designed to run on 90 RON. Newer engine technologies that are being developed to achieve greater fuel economy require higher-octane petrol. European studies suggest a 95 RON/85 MON grade is the optimum octane rating. This measure provides a balance between reducing fuel consumption, by improving fuel performance, and minimising the extra energy required to produce the higher octane fuel. Therefore, one must note that using fuel with higher octane than required does not affect/ increase engine performance and only incur additional and unnecessary costs.
Tyre Pressure
Correct tyre pressure can help to extend the life of your tyre, improve vehicle safety and maintain fuel efficiency. Pressure is measured by calculating the amount of air that has been pumped into the inner lining of your tyre in pounds force(PSI) or BAR pressure.
The manufacturer of your vehicle specifies the suitable pressure, and it is your responsibility to make sure that the pressure is checked and corrected on a regular basis, at least every couple of weeks. Note that you should check the tyres in cool weather for more accurate measurements.
Vehicle Inspection Requirements
It is mandatory for all vehicles in Singapore to undergo an annual roadworthiness inspection as vehicles that are not roadworthy are a safely harzard to all motorists on the road. The inspection would be carried out in several key areas such as structure (vehicle chassis), wheel, braking and steering systems, body, communication and propulsion system.
adapted from OneMotoring
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