The 1.8-liter Hyundai G4GM engine was assembled at a factory in South Korea from 1995 to 2000 and was installed on the Lantra in the J2 body, as well as the Coupe created on its basis, but only before restyling. Of the entire line, this is the rarest motor, as it was not installed in all markets.
Beta family: G4GR, G4GB, G4GM, G4GC, G4GF.
Specifications
| Production years | 1995-2000 |
| Displacement, cc | 1795 |
| Fuel system | distributed injection |
| Power output, hp | 128 – 132 |
| Torque output, Nm | 165 – 170 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 82 |
| Piston stroke, mm | 85 |
| Compression ratio | 10.0 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain & belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 4.0 |
| Fuel type | petrol |
| Euro standards | EURO 2 |
| Fuel consumption, L/100 km (for Hyundai Coupe 1997) — city — highway — combined |
10.7 7.8 8.9 |
| Engine lifespan, km | ~320 000 |
| Weight, kg | 135.6 |
The engine was installed on:
- Hyundai Coupe 1 (RD) in 1996 – 1999;
- Hyundai Lantra 2 (RD) in 1995 – 2000.
Disadvantages of the Hyundai G4GM engine
- The units of the first years had problems with build quality, as well as some components;
- It’s better not to save on lubrication or the hydraulic lifters will knock even before 100,000 km;
- The timing belt changes every 60,000 km, but it may break earlier and the valves will bend;
- After 200,000 km, oil consumption is often encountered due to wear of rings and caps;
- And here the exhaust manifold often cracks and there was even a recall campaign.
Frequently asked questions about the Hyundai G4GM
How much power does the Hyundai G4GM make?
The Hyundai G4GM develops 128 - 132 hp and 165 - 170 Nm of torque.
How much oil does the Hyundai G4GM take and which one?
Engine oil capacity: 4.0 liters. Recommended oil: 5W-40.
Does the Hyundai G4GM have a timing belt or chain?
Timing drive of the Hyundai G4GM: chain & belt.
Is the Hyundai G4GM turbocharged?
No, the Hyundai G4GM is naturally aspirated.
Does the Hyundai G4GM need valve clearance adjustment?
No, the Hyundai G4GM has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Hyundai G4GM last?
The typical lifespan of the Hyundai G4GM is ~320 000 km with proper maintenance.
What is the fuel consumption of the Hyundai G4GM?
Hyundai Coupe 1997: city 10.7, highway 7.8, combined 8.9 L/100 km.
What cars was the Hyundai G4GM installed on?
Hyundai Coupe 1 (RD) in 1996 - 1999; Hyundai Lantra 2 (RD) in 1995 - 2000.
What are the common problems of the Hyundai G4GM?
The units of the first years had problems with build quality, as well as some components. It’s better not to save on lubrication or the hydraulic lifters will knock even before 100,000 km. All known problems.





