The 3.0-liter Nissan VQ30DD engine was assembled from 1996 to 2004 in several boost options and was installed on such popular models as Cedric, Leopard, Stagea and Skyline. This power unit is known for its finicky to the quality of fuel consumed.
The VQ30 series also includes internal combustion engines: VQ30DE, VQ30DET, VQ35DE, VQ35DD, VQ35HR and VQ37VHR.
The engine was installed on:
- Nissan Cedric 10 (Y34) in 1999 – 2004;
- Nissan Gloria 11 (Y34) in 1999 – 2004;
- Nissan Leopard 4 (Y33) in 1996 – 1999;
- Nissan Skyline 11 (V35) in 2001 – 2004;
- Nissan Stagea 2 (M35) in 2001 – 2004.
Specifications
| Production years | 1996-2004 |
| Displacement, cc | 2987 |
| Fuel system | NEO-Di direct injection |
| Power output, hp | 230 – 260 |
| Torque output, Nm | 295 – 325 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 93 |
| Piston stroke, mm | 73.3 |
| Compression ratio | 11 |
| Features | NDIS |
| Hydraulic lifters | no |
| Timing drive | three chains |
| Phase regulator | eVTC |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.7 |
| Fuel type | petrol |
| Euro standards | EURO 4/5 |
| Fuel consumption, L/100 km (for Nissan Skyline 2003) — city — highway — combined |
14.2 8.6 10.4 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 190 |
Disadvantages of the VQ30DD engine
- Many problems with this engine are associated with the consumption of low-quality fuel;
- In the engine, the nozzles are constantly clogged, the high-pressure fuel pump or the MAF sensor fails;
- Due to deposits on the intake valves, many people regularly experience detonation;
- Bad gasoline destroys the catalyst, the crumbs of which are sucked into the combustion chamber;
- That is why scuffs form on the walls of the cylinders and the oil begins to burn.
