What to look for in a fuel efficient car

What to look for in a fuel efficient car

Fuel prices in New Zealand love to keep us humble, so it makes sense that more kiwi drivers are searching for the most fuel efficient cars in NZ.
Whether you’re commuting across town in peak traffic, or clocking up weekend roadies, a fuel efficient car can save you money over time. Here’s what to look for while you’re car shopping, plus practical fuel economy tips you can use straight away.

​​What does “fuel efficient" actually mean?

When people discuss fuel-efficient cars in NZ, they usually mean a car that uses less fuel. You can measure it in litres of fuel used to travel 100 kilometres (L/100km).
Lower is better. Not sure if your car is as efficient as it should be? A fuel economy check can help pinpoint what’s burning fuel (and costs).

A few key things affect fuel use:
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• Vehicle size and weight: small and lighter usually means lower fuel use
• Engine type and size : small engines and hybrids tend to do better
• Transmission: modern automatics can be efficient, but it varies
• Driving conditions: stop-start city traffic vs open road cruising can change the numbers a lot.

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In New Zealand, most listings will show an estimated fuel consumption figure, but your real-world results depend on how and where you drive.

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Hybrid car vs petrol: which is better for fuel economy?

This is one of the biggest questions for buyers: plug in hybrid car vs petrol - what’s the better option?

Hybrid cars (good for city and stop-start driving)
Hybrids use a petrol engine plus an electric motor. They’re often incredibly efficient around town because they can:

• use electric power at low speeds
• ​regenerate energy while braking
• reduce fuel use in traffic and at lights

​Petrol cars (often cheaper upfront, can be efficient on the open road)
A petrol car can still be fuel efficient - especially smaller hatchbacks and modern compact cars. Petrol may suit you if:

• you mainly drive open-road / motorway
• you want a lower upfront cost
• you prefer simpler servicing (no hybrid battery considerations)

If your driving is mostly urban, hybrid usually wins. If you do longer open-road runs, a fuel-efficient petrol model can still be a great choice.

What to look for in the most fuel efficient cars in NZ

To save money at the pump, keep an eye on these practical factors while car shopping for the most fuel efficient car. 

1.  Low L/100km (but compare like-for-like)
If you’re comparing two similar cars, the one with the lower L/100km figure is usually the better bet. Have a quick look at Rightcar to understand fuel economy figures before you buy. Just make sure you’re comparing:

• same type of driving (city vs combined vs highway)
• ​similar body style (SUV vs hatch)
• similar engine sizes

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2. Hybrid systems (if you’re in the city)​
If you’re in city traffic most days, hybrids can be a game-changer for fuel use. Even a small difference in L/100km adds quickly when you’re doing short trips all week.

3) Smaller + lighter body styles
Generally, the most fuel-efficient cars tend to be:

• compact hatchbacks
• small sedans
• small hybrid models

Larger SUVs and 4WDs can be efficient compared to older cars. However, they are not usually the best for fuel economy.
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4. Tyres and wheels that suit efficiency
Wide tyres and large wheels can look great but often increase fuel use. If fuel economy is the priority, smaller wheels and eco-focused tyres can help.

4. Service History
A well-maintained car is nearly always more efficient than a neglected one. Look for evidence of:

• regular servicing 
• clean air filters
• correct oil changes
• no unresolved engine warning lights

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Fuel economy tips (that actually make a difference)

Even if you buy one of the best fuel efficient cars, your driving style can make or break your real-world fuel use. Try these tips to reduce your fuel consumption:

Drive smoother

• ease into acceleration
• anticipate braking (don't race to red lights)
• use cruise control on steady open-road stretches

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Keep tyres correctly inflated
Underinflated tyres increase rolling resistance - which means your engine works harder and burns more fuel. One of the quickest fuel economy wins is correct tyre pressure - pop in for a tyre pressure check if you’re unsure.

Reduce unnecessary weight
Clearing out heavy gear you don’t need can improve economy, especially in smaller cars.

Limit roof racks (when you’re not using them)
Roof racks create drag and can noticeably increase fuel use at motorway speeds.

Stay on top of servicing
​Fresh oil, clean filters, and properly functioning spark plugs keep your engine running smoothly which improves fuel efficiency . Regular servicing can improve real-world fuel economy - if you’re due, you can book a service with us.

Quick checklist for choosing fuel efficient cars NZ

When you’re comparing options, ask yourself:

1. Do I drive mostly city, open road, or mixed?
2. Would a hybrid car vs petrol setup suit my weekly routine?
   
3. What’s the real L/100km estimate for the type of driving I do?
   
4. Does the car have a solid service history?
   
5. ​Are the tyres, size, and body style aligned with efficiency?
   

Looking for the most fuel efficient cars in NZ?

If you’re trying to save on fuel and keep fuel costs down, it helps to look past the sticker price and focus on the numbers. Check the car’s fuel economy. Look at the fuel consumption number to estimate your weekly costs.

If you drive in traffic a lot, hybrid technology can be a smart pick because it saves fuel in stop-start city driving. Whatever you choose, simple habits like smooth acceleration, correct tyre pressure, and regular servicing can improve fuel efficiency. The right match might come down to how you drive - not just what looks best on paper.
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