Someone asked us at a job a few weeks back what we made of all the fuel news floating around at the time. Prices about to move, big servos making headlines interstate, the usual noise. Here is the plain version of what actually happened through the middle of the year, and what it does or does not mean for the average Adelaide driver.
The excise discount ended on 3 August
The one that actually showed up on your receipt. The federal government halved the fuel excise earlier in the year as a cost of living measure, and that relief wound back in stages, with the full rate back from 3 August 2026. Excise returned to its full indexed rate of around 52.6 cents a litre on both unleaded and diesel, and the visible jump at the bowser landed through August on top of the normal price cycle. Not a scandal, just the discount ending the way it was legislated.
What you can control is timing. Adelaide's price cycle is real, and the gap between the top and bottom of the cycle is regularly more than the whole excise change. A fuel price app like MotorMouth, or any of the apps carrying South Australia's real time fuel pricing data, will show you where your suburb sits today. Filling at the bottom of the cycle beats worrying about the excise.
New servo, new layout, same trap
Fresh forecourts and unfamiliar pump layouts are the classic recipe for a mix up, and Adelaide's growth corridors keep adding them. Tip if you're pulling into a servo you haven't used before: read the sticker inside the fuel filler flap on your car first, not the pump handle. Green does mean diesel on most brands, but not all, and some sites use different colour codes. The sticker inside the flap is the only source of truth for your specific car.
A quick word on E10
If you find yourself at a pump where E10 is the cheap option, the general rule is that most petrol cars from around 2005 onwards run it fine. If your car is older, an import, or a classic, check the owner's manual or the sticker inside the flap before you use it. And E10 in a diesel is exactly the same problem as any other petrol in a diesel, so the flap check covers you there too.
What actually causes wrong fuel jobs
All the industry news is background noise. What causes almost every wrong fuel call we take is one thing, the driver being in a hurry or tired. Not the pump colour, not the servo layout, not the new E10 sticker. The single best defence stays the same in 2026 as it was five years ago: check the inside of the fuel filler flap before you pick up the nozzle.
If you've already done it, don't start the car. Call (08) 7083 9699. We'll come to you.
