Running your hydrogen vehicle with under-inflated tyres increases rolling resistance, forcing the fuel cell to consume more hydrogen to maintain the same speed. By simply keeping your tyres inflated to the manufacturer's recommended pressure, you can extend your driving range and lower your running costs.
The Science of Rolling Resistance in FCEVs
Hydrogen fuel cell electric vehicles (FCEVs) carry reinforced storage tanks and a heavy battery pack, making them heavier than a standard petrol sedan. This extra weight means tyre pressure is critical. When your tyres are soft, more rubber flattens against the road. This creates drag and increases rolling resistance. Research shows that overcoming this resistance accounts for a significant portion of a vehicle's energy loss on the freeway.
To overcome this drag, your vehicle's electric motor demands more power, which means the fuel cell must convert hydrogen into electricity at a faster rate. Maintaining the correct tyre pressure ensures the tyre holds its optimal shape, allowing your car to glide efficiently and stretching every kilogram of hydrogen further.
Why Efficiency Matters in Today's Fuel Market
While hydrogen refuelling infrastructure is expanding across Australia in August 2026, many households operate a mixed fleet—perhaps parking a hydrogen commuter next to a petrol ute or a diesel SUV. Regardless of what you drive, maximising efficiency is the best way to offset high running costs and save for your next rego.
A quick look at the current fuel market shows exactly why efficiency is crucial. U91 prices currently range from 158.7 cpl to 194.5 cpl nationally, a difference of 22.6%. Location dictates a lot of this pain at the servos. The top 3 cheapest capital cities for Unleaded 91 are currently Perth (196.31 cpl), Geelong (197.46 cpl), and Melbourne (200.38 cpl). In contrast, Unleaded 91 prices are 8.3% higher in Canberra (212.68 cpl) than in Perth (196.31 cpl).
Drivers relying on premium fuels face similar gaps. Premium 98 prices vary significantly across Australia, with Darwin (245.18 cpl) being 10.7% more expensive than Perth (221.52 cpl). In Sydney, Premium 95 (219.24 cpl) costs 8.7% more than Unleaded 91 (201.73 cpl). Meanwhile, Brisbane motorists can save 1.2% by choosing E10 (202.51 cpl) over Unleaded 91 (204.88 cpl).
Heavy vehicle and diesel drivers aren't spared either; Diesel sits 5.5% higher in Canberra (253.05 cpl) than in Geelong (239.75 cpl). For those running alternative options, LPG (avg. 111.1 cpl) remains 38.3% cheaper than Unleaded 91 (avg. 180 cpl), offering significant savings for vehicles with dual-fuel capability. At the extreme ends of the spectrum nationally, B20 (avg. 289.9 cpl) is 544.2% more expensive than EV charging (avg. 45 cpl).
Your Next Steps for Cheaper Motoring
Checking your tyre pressure is a free, five-minute job that yields immediate returns.
- Find the correct pressure: Check the tyre placard usually located on the driver's side door jamb or in your owner's manual.
- Check when cold: Tyre pressure increases as they heat up on the road. For the most accurate reading, check them in the morning before you hit the freeway.
- Make it a habit: Aim to check your pressures once a month or before any long road trip.
By keeping your tyres pumped, you'll minimise tread wear, improve handling, and ensure you aren't wasting precious hydrogen.
If you need to fill up the other vehicles in your driveway, don't pay more than you have to. Check the FuelRadar map or use our free app on iOS and Android to find the cheapest fuel nearby. With reported fuel prices Australia-wide and update times where available, you can easily track the cycle and lock in the best deal before your next distance check.
