A new Greens bill could mean hundreds of dollars of savings a year for local families.
Australian Greens Senator for South Australia Penny Wright says this is achievable by bringing Australia's fuel efficiency standards into line.
The bill is currently headed to the federal parliament.
The changes are anticipated to not only cut pollution but save around $850 a year on petrol.
The aim is to see fuel efficiency improved by more than 50 per cent in the next 10 years.