Parramatta and Western Sydney have real-time government fuel pricing. As one of Sydney's most populated commuter regions, Western Sydney has strong competition between fuel retailers, and prices are generally 3-8 cents lower per litre than Sydney's eastern suburbs and CBD.
Find the cheapest petrol across Western Sydney including Parramatta CBD, Blacktown, Penrith, Liverpool, Fairfield, Auburn, Granville, Merrylands, Seven Hills, Castle Hill, Rouse Hill, Marsden Park, St Marys, Mount Druitt, Wetherill Park, and Campbelltown.
Western Sydney fuel prices follow Sydney's weekly cycle but tend to bottom out first, meaning you can often get the cheapest prices in the city before the eastern suburbs drop. The Great Western Highway corridor and Parramatta Road have multiple competing stations. Independent stations in Fairfield, Auburn, and Granville consistently offer some of Sydney's cheapest fuel. The Costco at Marsden Park is usually among the lowest-priced stations in all of Sydney. New suburbs like Jordan Springs and Oran Park have newer stations competing on price.
Costco Marsden Park consistently has the lowest prices in Sydney — if you have a membership, it's worth the trip. Independent stations along Parramatta Road and in Fairfield are excellent alternatives. Avoid filling up on the M4 Motorway or M7 service centres where prices are significantly higher than surrounding suburbs.