7 EV Myths Debunked: What the Data Actually Shows

The truth: EVs have fewer moving parts than petrol cars and do not need oil changes, timing belts, or exhaust system repairs. But they are not maintenance-free.

Data from Norway (the world's most mature EV market with 90%+ EV sales) shows that EVs accumulate inspection faults at a higher rate than petrol cars as they age. At the 10-year mark, Norwegian data shows approximately 30% of EVs have inspection faults compared to 16% for equivalent-age petrol cars.

Common EV maintenance items include: tyre replacement (EVs are heavier, causing faster tyre wear), brake fluid changes, cabin air filter replacement, suspension components (heavier vehicle = more wear), and 12V auxiliary battery replacement. Software updates and coolant checks for the battery thermal management system are also periodic requirements.

The correct framing: EVs are lower maintenance than petrol cars, not zero maintenance. Annual servicing costs are typically $200-$400 compared to $400-$800 for petrol cars.

The truth: Real-world data from hundreds of thousands of EVs shows batteries retain 90%+ of original capacity after 8 years and 200,000+ kilometres.

Modern lithium-ion batteries degrade slowly and predictably. A Tesla Model 3 typically retains 93-95% capacity after 100,000km. Even at 300,000km, most retain 85%+. Battery management systems in modern EVs actively manage temperature, charge rates, and cell balancing to maximise longevity.

Every EV sold in Australia comes with a battery warranty: typically 8 years / 160,000km, guaranteeing the battery retains at least 70-80% of its original capacity. In practice, warranty claims for capacity loss are rare because real-world degradation is well below warranty thresholds.

The truth: EVs are statistically far less likely to catch fire than petrol cars. Data consistently shows roughly 25 fire incidents per 100,000 EVs compared to approximately 1,530 per 100,000 internal combustion engine vehicles.

EV fires are more newsworthy because they are unusual, which creates a perception bias. Petrol car fires are so common (about 150,000 per year in the US alone) that they rarely make the news.

When EV fires do occur, they can be more difficult to extinguish due to thermal runaway in lithium-ion cells. However, multiple layers of protection (battery management systems, thermal barriers, automatic shutdown circuits) make spontaneous fires extremely rare.

The truth: Australia's grid has massive spare capacity during off-peak hours when most EVs charge. Only about 4% of total grid capacity is utilised between 11pm and 6am.

If every car in Australia switched to electric overnight, off-peak grid capacity could handle the additional load without building a single new power station. This is because EVs charge primarily at night, filling the gap when commercial and industrial demand drops to near zero.

Smart chargers make this even better by automatically shifting load to the cheapest, lowest-demand periods. As EV adoption grows, energy retailers are introducing dedicated EV tariffs (some as low as 8c/kWh) specifically to incentivise off-peak charging and flatten grid demand curves.

The truth: The total cost of ownership (TCO) for an EV is lower than an equivalent petrol car over 5+ years when you factor in fuel savings, lower maintenance, and government incentives.

Annual fuel cost comparison (15,000km/year):

• EV (home off-peak): $400-$600
• Petrol car (8L/100km, $2/L): $2,400-$2,500
• Savings: $1,800-$2,100 per year on fuel alone

Add lower servicing costs ($200-$400 savings/year) and government incentives (stamp duty exemptions, registration discounts, FBT exemption for salary sacrifice), and the TCO gap widens further. Over 5 years, an EV typically saves $12,000-$18,000 compared to an equivalent petrol car.

The truth: Australia's public charging network has grown rapidly. Chargefox, Tesla Supercharger, and other networks now cover all major highways between capital cities and popular holiday destinations.

Most modern EVs have 400-600km of real-world range. A 30-minute fast charging stop (to add 200-300km) is comparable to a coffee and bathroom break. For trips within 300km of home (which covers 95%+ of all driving), range is a non-issue.

The key insight: road trips represent a tiny fraction of total driving. An EV charged at home handles the other 95% of your driving at a fraction of the cost. For the occasional long trip, the public charging network is sufficient and improving rapidly.

The truth: Early EVs with limited range (Nissan Leaf, first-gen BMWs) did depreciate quickly. Modern long-range EVs hold their value comparably to petrol equivalents, and in some cases better.

Tesla Model 3 and Model Y have consistently been among the best-depreciating vehicles in Australia. Strong demand, limited supply, and the FBT exemption (which increases demand for sub-$91K EVs) support resale values.

As the used EV market matures in Australia (used EV sales doubled in early 2026), buyers are becoming more comfortable with second-hand EVs. Battery health transparency (available through manufacturer apps and third-party diagnostics) is reducing buyer uncertainty about used EV batteries.