Choosing The Right Fuel


Premium petrol is always best right? Wrong!

Want to get the most out of your tank? Did you know by filling up with the correct fuel for your car you can save money and possibly extend the life of your car?

Petrol is graded using the Research Octane Number or RON such as 91, 95, 98, 100 or even 103. The RON number scores the fuels resistance to ‘pre-ignition’ or firing before it should due to heat from the engine.

Is a higher grade fuel better for my car?

Low-grade fuel doesn’t mean low quality - the grade determines how much heat and pressure the gasoline can resist before it detonates. The higher the number, the more compression the fuel can withstand before detonating.

Why does it matter what grade of fuel I use?

Petrol engines work by compressing a mixture of fuel and air and igniting it with a spark plug to generate power. If this explosion happens before the spark plug fires it creates a condition called “knock,” which can damage a motor and reduce power.

It's called 'knock' as that is the sound made when the fuel mix detonates too early rather than burning smoothly for fuel - which means you aren't getting the full performance from your car..


If your car is making any kind of knocking noise you should contact Hormans Service Centre in Epping today.


How do I know what grade of petrol to use in my car?

To find out what fuel you need, read your car’s manual or check the label on the inside of the fuel filler door. Generally high octane fuels are required by cars with performance engines or that are turbocharged.

Remember, putting premium petrol in a car that doesn’t actually need it won’t burn cleaner or offer you more power in an engine that’s tuned for regular, it will just drain your bank account that much faster!

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