Opal is a direct substitute for regular unleaded 91, delivering comparable performance. It can be used in cars, boats and other engines. It’s safe to mix with regular unleaded 91, or higher octane fuels, and can be stored in the same way.

As it is subsidised under the Australian Government’s Petrol Sniffing Prevention Program, Opal should be priced at an equivalent to the local price for regular unleaded 91.

Opal fuel conforms to the National Fuels Quality Standards Act 2000. All fuels sold in Australia must comply with this legislation and all vehicles that are manufactured or imported to Australia must be able to satisfactorily operate on these standards.

Advanced fuel technology

Opal fuel has been specifically formulated to clean deposits on critical parts of your engine as you drive, helping to break down these deposits and prevent new deposits from forming.

Independent laboratory testing showed that Opal fuel cleaned up to 20.8% (with an average of 10.6%) of existing sooty deposits which had formed on vital engine parts such as inlet valves.

Testing Opal fuel

Before its launch, Opal fuel was extensively tested independently in laboratories and in the field, as well as by toxicologists to assess its performance in cars, boats and engines.

Although it is low-aromatic, Opal still contains some volatile substances and should not be inhaled, as it can have adverse health effects and in extreme cases, may cause suffocation and death.

Opal fuel was also independently tested to assess its chemical composition when coming into contact with a polystyrene cup. The addition of polystyrene to Opal fuel did not increase the toxicity of the fuel.