The 2.5-liter Nissan VQ25DD engine was assembled from 1998 to 2007 at an enterprise in Japan and was installed on such popular concern models as Cefiro, Cedric, Stagea or Skyline. This engine is very demanding on fuel quality due to the NEO-Di direct injection system.
The VQ20 series also includes internal combustion engines: VQ20DE, VQ23DE, VQ25DE, VQ25DET and VQ25HR.
The engine was installed on:
- Nissan Cefiro 3 (A33) in 1998 – 2002;
- Nissan Cedric 10 (Y34) in 1999 – 2004;
- Nissan Gloria 11 (Y34) in 1999 – 2004;
- Nissan Skyline 11 (V35) in 2001 – 2006;
- Nissan Stagea 2 (M35) in 2001 – 2007.
Specifications
| Production years | 1998-2007 |
| Displacement, cc | 2495 |
| Fuel system | NEO-Di direct injection |
| Power output, hp | 210 – 215 |
| Torque output, Nm | 265 – 270 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 85 |
| Piston stroke, mm | 73.3 |
| Compression ratio | 11.0 – 11.3 |
| 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 2005) — city — highway — combined |
13.4 7.5 9.8 |
| Engine lifespan, km | ~320 000 |
| Weight, kg | 185 |
Disadvantages of the VQ25DD engine
- Due to poor-quality fuel in the engine, nozzles and a high-pressure fuel pump often fail;
- Bad gasoline destroys the catalyst, and its crumbs are sucked into the combustion chamber;
- Scuffs form on the cylinder wall, which provokes a progressive oil burn;
- Even short-term overheating causes warping of the mating surface of the cylinder head;
- On a run of 200 thousand km, you will most likely have to replace the entire set of timing chains.
