From 2012 to 2015, the company assembled the 2.0-liter Hyundai G4NE or 2.0 MPi Hybrid engine and fitted it to the hybrid Sonata 6 and comparable Optima 3 models for the Asian market. These hybrids came with a 2.4-liter G4KK engine from the Theta II series in the US market.
The engines in the Nu family are G4NB, G4NA, G4NC, G4ND, G4NE, G4NH, G4NG, G4NL, and G4NN.
The engine was mounted on:
- Hyundai Sonata 6 (YF) in 2012 -2015;
- Kia Optima 3 (TF) in 2012 – 2015.
Specifications
| Production years | 2012-2015 |
| Displacement, cc | 1999 |
| Fuel system | distributed injection |
| Power output, hp | 150 (190 with electrical component in 2012-2013 , 177 in 2013-2015) |
| Torque output, Nm | 180 (245 with electrical component in 2012-2013 , 319 in 2013-2015) |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 97 |
| Compression ratio | 12.5 |
| Features | Atkinson cycle |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Dual CVVT |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.3 |
| Fuel type | petrol |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Kia Optima Hybrid 2012) — city — highway — combined |
5.9 5.0 5.1 |
| Engine lifespan, km | ~250 000 |
Disadvantages of the Hyundai G4NE engine
There aren’t many cars made with this motor, so it’s really exclusive.
The absence of replacement parts and knowledgeable repair experts is its primary issue.
They frequently complain about different issues with the engine’s electrical system on specialized forums.
Additionally, owners deal with coolant and oil leaks on a regular basis.
Because the catalytic converter is near the cylinder block, scuffing is a real possibility.