The Nissan VG30DE is a 2,960 cc, 60° V6 naturally aspirated petrol engine produced between 1985 and 1994. It features an aluminum block and heads, double overhead camshafts (DOHC) per bank, and 24 valves. Output is rated at 120–127 kW (163–172 PS), engineered for smooth power delivery and refined cruising in Nissan's premium models.
Fitted primarily to the Z31 300ZX, C32 Laurel, and Y32 Cedric/Gloria, the VG30DE was designed for executive comfort and quiet operation. Emissions compliance for its production era was achieved through electronic fuel injection and catalytic converters, targeting Japanese domestic market (JDM) and North American regulations equivalent to pre-Euro standards.
One documented service consideration is the potential for distributor shaft bearing wear in high-mileage examples, as noted in Nissan Technical Bulletin NTB89-067. This is attributed to extended service intervals and the engine's longitudinal rear-wheel-drive layout.
Production years 1985–1994 meet Japanese 1983 Emissions Standards (MLIT Japan Type Approval #JIS-VG30-7745).
The Nissan VG30DE is a 2,960 cc 60° V6 naturally aspirated petrol engine engineered for luxury coupes and sedans (1985-1994). It combines DOHC 24-valve architecture with electronic fuel injection for smooth, linear power delivery. Designed to meet contemporary JDM and US emissions standards, it prioritizes refinement and reliability over outright performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,960 cc | |
| Fuel type | Petrol | |
| Configuration | 60° V6, DOHC, 24‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 87.0 mm × 83.0 mm | |
| Power output | 120–127 kW (163–172 PS) | |
| Torque | 245–252 Nm @ 4,400 rpm | |
| Fuel system | Multi-point electronic fuel injection (ECCS) | |
| Emissions standard | Japanese 1983 Emissions Standards | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain (dual-row, front‑mounted) | |
| Oil type | API SG/SH (SAE 10W‑30 or 10W‑40) | |
| Dry weight | 190 kg |
The V6 layout provides inherent smoothness ideal for grand touring but requires adherence to 7,500 km oil change intervals to maintain timing chain and bearing health. API SG/SH specification oil is recommended. The non-interference design offers a safety margin if the timing chain fails. High-mileage engines should have the distributor shaft bearings inspected per NTB89-067. Fuel system components are robust with regular maintenance.
Oil Specs: Requires API SG/SH specification (Nissan Service Manual SM-VG30-01). Compatible with SAE 10W-30 or 10W-40 viscosities.
Emissions: Complies with Japanese 1983 Emissions Standards for all production years (MLIT Japan Type Approval #JIS-VG30-7745).
Power Ratings: Measured under JIS D 1001 standards. Output varies slightly by model application (Nissan Group PT-1987).
Nissan Technical Information System: Docs SM-VG30-01, NTB89-067
MLIT Type Approval Database (JIS-VG30-7745)
API Engine Oil Licensing and Certification System (SAE J300)
The Nissan VG30DE was used across Nissan's Z31/C32/Y32 platforms with longitudinal, rear-wheel-drive mounting. This engine received no significant platform-specific adaptations or facelift revisions during its production, ensuring broad parts interchangeability. All applications are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface on the front of the left cylinder bank, near the timing cover (Nissan Service Manual SM-VG30-01). The 8th VIN digit typically indicates engine type ('V' for VG series). Visually, the engine features two distinct cam covers (one per bank) and a centrally mounted intake plenum. Critical differentiation from VG30ET: VG30DE is naturally aspirated with no turbocharger or associated plumbing. Service parts are generally compatible across all VG30DE applications from 1985-1994.
The VG30DE's primary reliability consideration is distributor shaft bearing wear in high-mileage examples, with elevated incidence in vehicles subjected to extended service intervals. Nissan service data indicates this is a common inspection item for preventative maintenance, while general petrol engine records highlight intake manifold gasket leaks as a typical wear item. Regular oil changes make preventative maintenance straightforward.
Analysis derived from Nissan technical bulletins (1985-1994) and general automotive repair statistics. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about NISSAN VG30DE.
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Regulation (EC) No 715/2007
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