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Choosing The Right Fuel

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Merry Christmas from Combined Automotive Services
Combined Automotive Services wish our customers a safe and happy holiday season. To get your car in prime condition and avoid being stuck during the holiday season, ensure you book in your car service well in advance!  

 

Premium petrol is always best right? Wrong!

Tired of paying too much for petrol? Did you know by choosing the right fuel for your car you can save money and possibly extend the life of your car?

Petrol is rated using the Research Octane Number or RON such as 91, 95, 98, 100 or even 103. The RON number ranks 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 number determines how much heat and pressure the gasoline can resist before it detonates. Lower grade fuels detonate at lower heat and pressure than higher grades.


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 the spark plug hasn't fired and the detonation happens early due to heat and pressure it creates a condition called “knock,” which can damage a motor and reduce power.

Knocking is the sound made as the mix of fuel and air is detonating too early rather than burning smoothly for fuel - which means you aren't getting the most out of your car, or your tank of fuel..

 

If your car is making any kind of knocking noise you should contact Combined Automotive Services in Milton 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. Usually high performance vehicles need a higher octane fuel.

Remember, putting premium petrol in a car that doesn’t actually need it does not make your car faster or perform better, it will just drain your bank account that much faster!

 

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