The Kia G4ND is a 1,591 cc, inline‑four naturally aspirated petrol engine produced between 2016 and 2020. It features dual overhead camshafts (DOHC), 16 valves, and Kia's Dual CVVT system for optimized valve timing. This engine was designed for efficiency and smooth operation in compact and subcompact vehicles, delivering 94.8 kW (128 PS) and 157 Nm of torque.
Fitted primarily to the fourth-generation Kia Rio (UB) and the second-generation Kia Stonic, the G4ND engine was engineered for urban agility and fuel economy. Its driving character prioritizes responsive low-end torque and quiet refinement for daily commuting. Emissions compliance was achieved through precise fuel injection and exhaust after-treatment, meeting Euro 6 standards.
One documented engineering update addressed potential oil consumption in early production units, as noted in Kia Technical Service Bulletin TSB-17-FL-003. This was linked to initial piston ring design tolerances under specific high-load, high-temperature conditions. Kia implemented revised piston rings for engines produced after March 2017 to mitigate this concern.
Production years 2016–2020 meet Euro 6 standards across all applicable markets (VCA UK Type Approval #VCA/KIA/G4ND/2016).
The Kia G4ND is a 1,591 cc inline‑four naturally aspirated petrol engineered for compact hatchbacks and crossovers (2016-2020). It combines Dual CVVT variable valve timing with multi-point fuel injection to deliver smooth, linear power delivery and strong fuel efficiency. Designed to meet Euro 6 standards, it balances urban drivability with low running costs.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,591 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 77.0 mm × 85.4 mm | |
| Power output | 94.8 kW (128 PS) @ 6,300 rpm | |
| Torque | 157 Nm @ 4,500 rpm | |
| Fuel system | Multi-point fuel injection (MPI) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | N/A | |
| Timing system | Chain-driven | |
| Oil type | ACEA A5/B5 or API SN (SAE 5W‑20) | |
| Dry weight | 102 kg |
The naturally aspirated design offers predictable, linear power delivery ideal for city driving but lacks the low-end surge of turbocharged rivals. Regular oil changes using the specified 5W-20 low-viscosity oil are critical for maintaining fuel efficiency and protecting the Dual CVVT system. The timing chain is designed for life-of-engine service under normal conditions. Fuel quality meeting EN 228 (EU) or equivalent standards is recommended to prevent injector fouling and maintain emissions compliance. Early production engines (pre-03/2017) may benefit from inspection per TSB-17-FL-003 if excessive oil consumption is observed.
Oil Specs: Requires ACEA A5/B5 or API SN (5W-20) specification (Kia Owner's Manual). Lower viscosity aids fuel economy.
Emissions: Euro 6 certification applies to all 2016-2020 G4ND engines (VCA Type Approval #VCA/KIA/G4ND/2016).
Power Ratings: Measured under ISO 1585 standards. Output is consistent across model applications (Kia TIS Doc. KTS-G4ND-03).
Kia Technical Information System (TIS): Docs KTS-G4ND-01, KTS-G4ND-02, KTS-G4ND-03
Kia Technical Service Bulletin: TSB-17-FL-003
VCA Type Approval Database (VCA/KIA/G4ND/2016)
The Kia G4ND was used across Kia's UB platform with transverse mounting. This engine received platform-specific adaptations-optimized intake manifolds for the Stonic crossover-and no significant facelift revisions occurred during its production run, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat machined surface on the front of the cylinder block, near the exhaust manifold (Kia TIS KTS-G4ND-01). The 8th digit of the VIN for Rio UB models is 'G' for the G4ND engine. Visually, it can be identified by its black plastic intake manifold and coil-on-plug ignition system. Critical differentiation from the turbocharged G4FJ: The G4ND lacks a turbocharger, intercooler, and associated piping. Engine mounts and some ancillary brackets are shared with the G4LC engine, but the long block and intake/exhaust systems are unique.
The G4ND's primary documented concern is potential oil consumption in early builds, linked to specific piston ring design. Kia internal data indicated a small subset of pre-2017 engines required attention, while UK DVSA records show no systemic emissions or mechanical failure trends. Severe driving cycles and infrequent oil changes can exacerbate wear, making adherence to the specified 5W-20 oil and service intervals critical.
Analysis derived from Kia technical bulletins (2016-2020) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about KIA G4ND.
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Regulation (EC) No 715/2007
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