350z oil leak

Reply Subscribe

Thread Tools

Search this Thread

Feb 23, 2019 | 07:14 AM

Mark A Leone

Thread Starter

Registered User

Joined: Feb 2019

Posts: 1

Likes: 0

From: New smyrna beach florida

350z oil leak

Hello all!
question for you.
is there a specific part of the 04 Nissan 350z engine that leaks oil?
something very common?

Feb 23, 2019 | 07:16 AM

travlee

Master

iTrader: (8)

Joined: Jul 2011

Posts: 49,731

Likes: 9,298

From: Texas

The motor

Feb 23, 2019 | 09:25 AM

Spike100

New Member

Joined: Dec 2006

Posts: 7,337

Likes: 204

From: Edina, Minnesota

I have a 2003 350z and the car was leaking oil at the valve covers. I replaced the valve covers (and of course the gaskets). The car had about 120k miles at the time.

Feb 25, 2019 | 04:58 AM

OldManZFL

Registered User

Joined: Oct 2018

Posts: 43

Likes: 5

From: Florida

In addition to the valve covers, the O-ring on the oil filter likes to go bad. Fairly easy fix

Feb 25, 2019 | 06:27 AM

dkmura

General & DIY Moderator
MY350Z.COM

iTrader: (64)

Joined: May 2002

Posts: 8,634

Likes: 1,395

From: Aurora, Colorado

Quote:

Originally Posted by OldManZFL

In addition to the valve covers, the O-ring on the oil filter likes to go bad. Fairly easy fix

This really depends on the quality of the oil filter. I've NEVER had an O-ring go bad on the OEM, Mobil 1 or K&N oil filter in over 16 years with the Z33.

Feb 25, 2019 | 09:45 AM

OldManZFL

Registered User

Joined: Oct 2018

Posts: 43

Likes: 5

From: Florida

Quote:

Originally Posted by dkmura

This really depends on the quality of the oil filter. I've NEVER had an O-ring go bad on the OEM, Mobil 1 or K&N oil filter in over 16 years with the Z33.

Very true, i started going with "cheaper" alternatives in 2017, 14 years without an issue and all of a sudden it started leaking.

Feb 25, 2019 | 09:59 AM

coletrickle74

New Member

iTrader: (1)

Joined: Jul 2014

Posts: 403

Likes: 86

From: Chicagoland

Highly recommend opening the hood to look.

Trending Topics

What have you done for your Z today?

16.9k

2.3M
What is this 350Z worth, or pass on it?

25

1.1k
My Winter Project

42

2.8k
New 350z owner here - electrical noises from rear wheels at idle. Any...

7

379
G35 Build 2nd Try

666

69.0k

Feb 25, 2019 | 02:07 PM

jhc

General & Tech Moderator
MY350Z.COM

Joined: Jan 2013

Posts: 10,400

Likes: 2,226

From: ZdayZ

Look at valve covers, then EGR valve and hosing. Obviously start looking at the bottom and follow upwards with very good light.

Mar 7, 2019 | 05:54 AM

Cracka350

New Member

iTrader: (1)

Joined: Dec 2012

Posts: 223

Likes: 32

From: Washington DC

Quote:

Originally Posted by coletrickle74

Highly recommend opening the hood to look.

Alright alright...

Apr 5, 2019 | 10:27 AM

#10

Johnyrocket

New Member

Joined: Sep 2010

Posts: 7

Likes: 0

From: Boynton Beach,Florida

Check the gasket behind the Oil Cooler.

May 16, 2019 | 03:47 AM

#11

813_350Z

New Member

Joined: Dec 2013

Posts: 1,051

Likes: 318

From: West Coast, Florida

Quote:

Originally Posted by travlee

The motor

Oh man, Travlee. I haven't seen you since that kid tried to buy the "1000 hp" Z with the fake dyno sheets! Then again, I haven't logged in in 3 years. lol.

ANYWAY, Travlee is 100% spot on!

Unfortunately, seals on this motor might as well be non-existent. I've had leaks on my seals on my spark plug wells, the valve cover rings, and the lower oil pan gasket. I always keep a backup set of valve cover seals because I've replaced them 3 times in the 8 years I've owned my Z.