SA Fuel Prices – Week of 29 June 2026

South Australia's metro U91 jumped 7.9c this week to reach 158.2 c/L, the sharpest weekly rise of any fuel type on the board. Despite that, SA drivers are still getting a better deal than anywhere else in the country.

SA Fuel Prices Snapshot: Metro vs Rural This Week

Biggest Movers in SA Petrol Prices This Week

P95 led the charge with an 8.0c metro rise to 174.5 c/L, while U91 and P98 weren't far behind at +7.9c and +7.8c respectively. E10 also climbed 6.4c in metro areas, though it remains the cheapest fuel available at 151.5 c/L.

The daily data tells an interesting story. Metro U91 opened the week at 148.8c on Monday 29 June, then climbed steadily through mid-week, reaching 162.4c by Friday and pushing to 165.9c by Sunday. There was no meaningful dip or reversal — it was a straight upward grind all week. Rural prices followed the same pattern but moved more gradually, rising from 171.8c to 180.7c across the seven days.

P95 tracked almost identically, starting at 165.0c metro on Monday before climbing to 182.7c by Sunday. Rural P95 hit 198.0c by the end of the week.

E10 saw the same steady climb, moving from 143.1c to 157.2c metro across the week.

P98 rose from 173.6c to 191.0c metro, with rural prices briefly crossing 201.1c on Saturday.

Rural diesel bucked the trend entirely, actually falling 2.0c to 195.6 c/L while metro diesel crept up 2.5c to 181.9 c/L.

SA vs National Petrol Prices: How the State Compares

SA is the cheapest state in the country this week, sitting 3.4c below the national metro U91 average of 161.6 c/L. ACT drivers are paying 169.5 c/L, making SA look even better by comparison.

Station Price Range and Best Metro Brands in SA

There's a striking 57.2c spread between the cheapest and most expensive metro stations this week. Costco Kilburn is the standout at 142.7 c/L for U91, while the priciest independent sits at 199.9 c/L. That gap alone is reason enough to check prices before you drive.

Brand averages reinforce the point. Liberty (153.7c) and U-Go (153.8c) are the cheapest branded options, while BP averages 161.1c and independent stations sit at 165.2c. Choosing the right brand over the wrong one could save you more than 11c per litre.

Which Day Was Cheapest to Fill Up Last Week?

Last Monday, 29 June, was the cheapest day to fill up metro U91, with an average of 148.8 c/L. That was more than 17c cheaper than Sunday's close. If you filled a 55-litre tank on Monday instead of Sunday, you saved around $9.50.

SA Metro Petrol Price Forecast: What's Coming Next

The metro U91 forecast points to further rises. Prices are tipped to reach 166.6 c/L on Monday 6 July, 167.2 c/L on Tuesday, and 167.8 c/L on Wednesday — each of those roughly 8c to 9.6c above the current weekly average of 158.2 c/L. Confidence ranges from 66% down to 55%, so treat these as a guide rather than a guarantee.

How to Save on Fuel in SA Right Now

The 30-day metro U91 range runs from 142.7c to 199.9c, and this week's 158.2c average sits comfortably in the lower third of that range. SA is well-positioned compared to other states, but with prices rising daily and the forecast pointing higher, filling up sooner rather than later makes sense. E10 at 151.5c is your cheapest option if your car supports it. If you're on U91, Liberty and U-Go stations are averaging more than 7c cheaper than independents right now.

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