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350z oil leak

Old 02-23-2019, 07:14 AM
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Mark A Leone
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Default 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?
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Old 02-23-2019, 07:16 AM
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travlee
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The motor
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Old 02-23-2019, 09:25 AM
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Spike100
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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.
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Old 02-25-2019, 04:58 AM
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In addition to the valve covers, the O-ring on the oil filter likes to go bad. Fairly easy fix
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Old 02-25-2019, 06:27 AM
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Originally Posted by OldManZFL View Post
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.
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Old 02-25-2019, 09:45 AM
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Originally Posted by dkmura View Post
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.
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Old 02-25-2019, 09:59 AM
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Highly recommend opening the hood to look.
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Old 02-25-2019, 02:07 PM
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Look at valve covers, then EGR valve and hosing. Obviously start looking at the bottom and follow upwards with very good light.
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Old 03-07-2019, 05:54 AM
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Originally Posted by coletrickle74 View Post
Highly recommend opening the hood to look.
Alright alright...
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Old 04-05-2019, 10:27 AM
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Check the gasket behind the Oil Cooler.
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Old 05-16-2019, 03:47 AM
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Originally Posted by travlee View Post
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.
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Old 05-16-2019, 05:08 AM
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Originally Posted by 813_350Z View Post
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.
ha, yep still here and still sarcastic
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