NRMA Motoring Blog

Since 1 January 2009, diesel fuel has had to meet strict fuel quality standards, now producing a significantly lower amount of sulphur than both ULP and PULP.

National fuel standards

National standards regulating fuels that impact the environment first came into effect in January 2002, brought in to reduce the amount of toxic pollutants in emissions.

Initially, diesel’s sulphur standard was set at 500 parts per million (ppm). As of 1 January 2009, this was reduced to a maximum of 10 ppm.

How does this compare?

From 1 January 2005, the maximum amount of sulphur ULP (91.0 RON) could contain was set at 150 ppm.

Since 1 January 2008, PULP’s (95.0 RON) maximum sulphur is 50 ppm.

Is it time diesel lost its ‘dirty’ reputation?

New generation turbo-diesels have particulate filters which further reduce the amount of particulate (soot) produced in the vehicle’s emissions. On top of that, these new generation diesels are proven to go further on less. For instance, BMW’s new diesel powered 1-series, on sale now, returns less than 5 litres per 100km and emits just 126g of CO2 per kilometer.

The first diesel-fuelled Subaru to be offered in Australia, the Subaru Outback, will be on sale in November this year, and diesel models of the 2010 Mazda CX-7, 2011 Ford Territory and Peugeot’s new 407 are all on the way. It is clear that more and more new car models are being offered with ‘clean’ diesel alternatives.

Coupled with the particulate filter and the new, stringent sulphur emission standards, diesel might just be a viable, greener fuel alternative.

Does diesel still have a ‘dirty’ reputation? Have you thought of diesel as a greener fuel option?

For the full list of diesel quality standards, visit The Federal Government’s Environment website.