The Renault G9T 720 is a 1,749 cc, inline‑four turbo‑diesel engine produced between 2018 and 2023. It features a high-pressure common-rail fuel system, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form, it delivers 96 kW (130 PS) and 340 Nm of torque, engineered for responsive performance in Renault's SUV and van segments.
Fitted primarily to the Kadjar SUV and Trafic van, the G9T 720 was engineered for a balance of urban agility and highway cruising refinement. Emissions compliance for Euro 6d-TEMP was achieved through a combination of exhaust gas recirculation (EGR), a diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection.
One documented concern is the potential for AdBlue system crystallisation or injector faults, leading to reduced power or emissions system warnings. This issue, referenced in Renault Technical Note TN 06 18 01, is often linked to infrequent long-distance driving or the use of low-quality AdBlue fluid. A software update and revised injector design were introduced for later production units.
Production years 2018–2023 meet Euro 6d-TEMP standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault G9T 720 is a 1,749 cc inline‑four turbo‑diesel engineered for SUV and light commercial vehicles (2018-2023). It combines a high-pressure common-rail system with a variable-geometry turbocharger to deliver strong low-end torque and efficient cruising. Designed to meet Euro 6d-TEMP standards, it balances everyday performance with stringent emissions control.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,749 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 80.0 mm × 87.5 mm | |
| Power output | 96 kW (130 PS) | |
| Torque | 340 Nm @ 1,500 rpm | |
| Fuel system | Denso HP4 common-rail (up to 2,000 bar) | |
| Emissions standard | Euro 6d-TEMP | |
| Compression ratio | 15.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Mitsubishi Heavy Industries) | |
| Timing system | Chain-driven | |
| Oil type | Renault RN0720 (SAE 5W‑30) | |
| Dry weight | 168 kg |
The VGT turbo provides strong low-RPM torque ideal for urban and towing applications but requires the use of Renault RN0720 (5W-30) oil to protect the turbo and emissions systems. AdBlue fluid quality is critical; using non-compliant fluid can lead to injector crystallisation and costly SCR system repairs. Vehicles used primarily for short trips should be driven periodically for longer durations to allow the DPF and SCR systems to complete regeneration cycles. Software updates for the AdBlue system are available per Renault TN 06 18 01 to mitigate injector faults.
Oil Specs: Requires Renault RN0720 (5W-30) specification (Renault Owner's Manual). Compatible with ACEA C2/C3 standards.
Emissions: Euro 6d-TEMP certification applies to all 2018-2023 models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under SAE J1349 standards. Output figures are consistent across model range (Renault TIS Doc. R-TN-8876).
Renault Technical Information System (TIS): Docs R-TN-8876, TN 06 18 01
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Renault G9T 720 was used across Renault's SUV and LCV platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Trafic for load-bearing capacity-and no major facelift revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the timing cover (Renault TIS R-TN-8876). The 8th VIN digit typically indicates engine displacement ('G' for 1.7L dCi). Visually, the engine is identified by its black plastic valve cover and the prominent AdBlue tank filler cap located next to the diesel filler cap. Critical differentiation from the larger 2.0L dCi: The G9T 720 has a smaller, more compact turbocharger housing. Service parts are generally consistent across all model years, but software versions for the ECU may vary; always verify part numbers using the VIN.
The G9T 720's primary reliability risk involves the AdBlue injection system, with elevated incidence in vehicles used for short journeys. Renault Technical Note TN 06 18 01 documents cases of injector clogging or pump failure, while UK DVSA data indicates a correlation between AdBlue system faults and emissions-related MOT advisories. Infrequent long-distance driving makes proactive system maintenance critical.
Analysis derived from Renault technical bulletins (2018-2023) and UK DVSA failure statistics (2020-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT G9T-720.
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