The Renault Clio 1.5 dCi has long been celebrated for its remarkable ability to deliver outstanding fuel economy without sacrificing drivability or comfort. This compact diesel engine, typically producing around 90 horsepower, combines turbocharging with advanced efficiency technologies to achieve figures that rival or surpass many competitors in the supermini segment. Whether navigating city streets, cruising motorways, or embarking on long journeys, the Clio 1.5 dCi proves itself as a frugal yet capable performer.
Engine Technology Behind the Efficiency
At the heart of the Clio’s appeal is its 1.5-litre four-cylinder turbodiesel engine. This powerplant employs a variable-geometry turbocharger to optimize boost across a wide rev range, ensuring strong low-end torque of approximately 162 lb ft from as low as 1,750 rpm. This setup allows drivers to maintain momentum without frequent gear changes, which directly contributes to better fuel consumption.
Key features like stop-start technology play a crucial role. By automatically shutting off the engine during idle periods—such as at traffic lights—the system recovers energy that would otherwise be wasted, adding several percentage points to overall efficiency. Real-world tests confirm official combined economy ratings hovering around 88 mpg, with actual figures often landing in the high 70s under mixed driving conditions.
- Turbocharged design: Delivers torque early for relaxed driving and reduced fuel use.
- Stop-start system: Cuts idle fuel consumption significantly in urban settings.
- Lightweight construction: The Clio’s body is about 100kg lighter than predecessors, aiding acceleration and economy.
Real-World Fuel Consumption Breakdown
While official WLTP figures quote between 56.5 and 57.6 mpg for manual versions (with CO2 emissions of 104-107g/km), everyday drivers report even higher averages. Long-term tests on motorways reveal sustained 77.5 mpg, particularly when holding a steady 65 mph—the engine’s optimal cruising speed. Urban drivers benefit from the diesel’s torque, achieving 50-60 mpg in stop-go traffic, while estate variants like the Sports Tourer push towards 70 mpg on longer runs.
| Driving Condition | Reported MPG | CO2 (g/km) | Source Notes |
|---|---|---|---|
| Motorway (65 mph cruise) | 77.5 | 83 | Long-term fleet test |
| Mixed WLTP | 56.5-57.6 | 104-107 | Official ratings |
| Urban/Highway Mix | 50-60 | N/A | User experiences |
| Long Journey (Estate) | 70.6 | Low | Sports Tourer test |
These numbers highlight the engine’s versatility. For instance, a 2017 Euro 6 model demonstrated up to 86 mpg potential under ideal conditions, thanks to its refined calibration and service history including recent cambelt changes.
Running Costs and Ownership Expenses
Beyond fuel savings, the Clio 1.5 dCi excels in overall affordability. Road tax remains low at £140 annually after the first year, reflecting its modest CO2 output. Insurance groups range from 7-13E, keeping premiums competitive due to small engines and repair-friendly plastic body panels.
Maintenance is straightforward with cheap parts availability and simple servicing. A tested 2014 model, equipped with options like R-Link multimedia and climate control, listed at £17,200 but delivered value through negligible running costs over months of use. Diesel reliability shines here; with proper care, these engines routinely exceed 100,000 miles while maintaining efficiency.
- Tax: £140/year post-initial period.
- Insurance: Groups 7-13, lower than many rivals.
- Parts/Service: Inexpensive and accessible.
Performance and Driving Dynamics
Don’t mistake efficiency for sluggishness. With 0-62 mph in 12 seconds and a top speed of 112 mph, the Clio handles daily duties adeptly. Torque-rich delivery makes overtaking effortless, and handling remains sharp through twisty roads—praised for precise steering even in lower-powered variants.
On motorways, cruise control and a ‘green driving’ display via the R-Link system encourage optimal habits, making long hauls relaxing. The 90hp output suits relaxed pacing over aggressive pursuits, preserving fuel.
Practicality and Interior Comfort
The Clio’s hatchback design offers 300 litres of boot space, expanding significantly with seats folded. Features like Bluetooth, DAB radio, and keyless entry in higher trims (e.g., Dynamique Nav) enhance daily usability without inflating costs.
Estate versions provide 439 litres (1,277 folded), though payload is modestly lower than some rivals. Refinement levels impress, with quiet operation and comfortable seating for four adults.
Environmental Impact and Modern Compliance
Euro 6 compliance ensures low NOx and particulate emissions, aligning with stringent regulations. At 83-107g/km CO2, it undercuts many petrol superminis, appealing to eco-conscious buyers seeking diesel’s range advantages—up to 700+ miles per tank.
Common Owner Experiences and Tips
Owners frequently cite 58+ mpg pre-service resets, dropping temporarily due to resets but rebounding. For best results:
- Maintain steady speeds on highways.
- Use quality diesel and adhere to service intervals.
- Enable eco modes where available.
Video tests on similar 1.5 dCi units (e.g., in Megane) yield 5.6L/100km (50+ mpg) at motorway paces, validating Clio claims.
Comparisons with Rivals
Against Ford Fiesta or VW Polo diesels, the Clio edges in pure economy while matching fun-to-drive credentials. Newer hybrids like the 1.6 E-TECH offer 50+ mpg but at higher upfront costs (£21k+ vs Clio’s used value).
Is the Clio 1.5 dCi Right for You?
For high-mileage commuters, families, or fleet operators, yes. Its blend of 70-80+ mpg potential, low taxes, and reliability makes it a standout. Used models from 2014-2019 remain plentiful and affordable.
Frequently Asked Questions (FAQs)
What is the real-world MPG of the Renault Clio 1.5 dCi?
Owners and tests report 50-77 mpg, with motorway peaks at 77.5 and official WLTP around 57 mpg.
How low are the running costs?
£140/year tax, low insurance (groups 7-13), cheap parts, and excellent fuel economy keep costs minimal.
Is it reliable?
Yes, with proper maintenance like cambelt changes; engines handle high mileage well.
What trims are available?
Popular ones include Dynamique Nav with satnav, DAB, and keyless entry.
How does it compare to hybrids?
Diesels like this offer similar or better MPG at lower purchase prices than newer E-TECH models.
References
- Renault Clio 1.5 dCi 86 eco2 2014 long-term review — Motoring Research. 2014. https://www.motoringresearch.com/car-reviews/renault-clio-1-5-dci-86-eco2-2014-long-term-review/
- Renault Clio hatchback (2013-2019) – MPG, running costs & CO2 — CarBuyer. 2019-06-21. https://www.carbuyer.co.uk/reviews/renault/clio/hatchback/73873/mpg
- 2017 Renault Clio 1.5 dCi Dynamique Nav Euro 6 (s/s) 5dr — YouTube (Pritchards Of Shrewsbury). 2017.
- Renault Clio 1.5 DCi: What You Need To Know — Roche Gifts and Entertainment. N/A. https://giftsandentertainment.roche.com/open-outlook/renault-clio-15-dci-what-you-need-to-know-1767646875
- Renault Clio Sports Tourer 1.5 Expression+ dCi 88 — Green Car Guide. N/A. https://www.greencarguide.co.uk/green-car-guides/renault-clio-sports-tourer-1-5-expression-dci-88/
- Is a Clio 1.5 DCI my best bet? — PistonHeads Forum. N/A. https://www.pistonheads.com/gassing/topic.asp?h=0&f=23&t=1178442

