How reliable is this fitment answer?

Confidence: Confirmed (3 of 3). Backed by a manufacturer document, or two or more independent sources agree on a specific checkable fact. Based on 2 cited source(s), last verified 2026-10-26.

What is the factory spec for the VQ35HR oil pressure check spec (2007 350Z manual) on a Nissan 350Z (Z33, 2003-2009)?

Q: What is the factory spec for the VQ35HR oil pressure check spec (2007 350Z manual) on a Nissan 350Z (Z33, 2003-2009)?

Factory specification. With oil at 80 °C, the 2007 manual expects more than 98 kPa (14 psi) at idle and more than 294 kPa (43 psi) at 2,000 rpm. Use a mechanical gauge to check for leaking oil gallery gaskets; one shop uses slightly different limits (12 / 44 psi).

Added 2026-10-26 · Updated 2026-10-26

Short answer: Factory specification Confirmed

Verdict:Factory spec Confirmed confidence (3 of 3) · 2 sources

Factory specification: With oil at 80 °C, the 2007 manual expects more than 98 kPa (14 psi) at idle and more than 294 kPa (43 psi) at 2,000 rpm.

Years: 2007-2008 · Applies to: VQ35HR cars · 2 sources · Last verified 2026-10-26

Part	VQ35HR oil pressure check spec (2007 350Z manual)
Vehicle	Nissan 350Z (Z33, 2003-2009)
Years	2007-2008
Trim / condition	VQ35HR cars
Verdict	Factory spec Specification
Confidence	Confirmed 3 of 3 — Backed by a manufacturer document, or two or more independent sources agree on a specific checkable fact.
Last verified	2026-10-26 (date the cited sources were last read)

Details

With oil at 80 °C, the 2007 manual expects more than 98 kPa (14 psi) at idle and more than 294 kPa (43 psi) at 2,000 rpm. Use a mechanical gauge to check for leaking oil gallery gaskets; one shop uses slightly different limits (12 / 44 psi).

Specs

idle: more than 98 kPa (14 psi)
at 2000rpm: more than 294 kPa (43 psi)
oil temp: 80 °C

Related known issues

VQ35HR oil gallery gaskets leak and drop oil pressure (2007-2008)

Related build entries

2007-2008 350Z: test oil pressure for gallery gasket leaks

Other engine fitment for the Z33

Nissan replacement engine 10102-AC7MZ under NTB07-088 (2005 Track / 35th Anniversary M/T, 2006 M/T) — Specification Factory spec

More for this car

All Nissan 350Z (Z33, 2003-2009) fitment answers · Z33 common problems
Newsletter archive: past issues with every new and corrected entry

Sources

2007 Nissan 350Z Service Manual, section LU (engine lubrication) — Nissan North America service manual (section PDF hosted by nicoclub.com) (mfr spec; read 2026-10-26; full page read)
Idle above 98 kPa (14 psi); 2,000 rpm above 294 kPa (43 psi).
Recurring problems (350Z / G35 / 370Z / G37) — GZ Motorsports (repair shop and parts store, Quebec) (vendor article; read 2026-10-26; full page read)

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