Nissan 370Z Forum  

370Z oil consumption

Originally Posted by katillidie well as of nissan wont tell us nor do they give reasons for the oil consumtion, but. i have asked some older 30 year master techs

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain


Reply
 
LinkBack Thread Tools Display Modes
Old 10-30-2010, 11:57 PM   #196 (permalink)
6MT
A True Z Fanatic
 
6MT's Avatar
 
Join Date: May 2009
Location: ITU Zone 2
Posts: 22,459
Drives: Reliant Robin
Rep Power: 1790
6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute
Default

Quote:
Originally Posted by katillidie View Post
well as of nissan wont tell us nor do they give reasons for the oil consumtion, but. i have asked some older 30 year master techs at nissan training about it, and it supposivly has always been a problem with nissan engines with the rings not seating correctly... with either the manufacturer of the rings or the cylinder wall surface. no body really knows except for the higher ups at nissan who wont disclose any info
Cough, cough.... forgive me, but that is pure "bovine scatology". Piston rings, especially very hard ones that are in this engine, take quite a long time to seat. Break-in period is quite long. For heavens sake people.... RELAX!! How long must this insanity continue before people will just give these engines 10K miles to properly break-in?

My engine..... 9500 miles..... oil consumption..... NIL!! Yes, it did use quite a bit of oil during the first 5 or 6 thousand miles. But now..... NOTHING. A B S O L U T E L Y N O R M A L !



(WOW)
__________________
Andrew

2009 370Z Sport/Touring 6MT sold
2013 Honda Civic Si coupe D/D
6MT is offline   Reply With Quote
Old 10-31-2010, 12:19 AM   #197 (permalink)
Track Member
 
import111's Avatar
 
Join Date: Feb 2009
Location: Tucson, AZ.
Posts: 622
Drives: 09 Nissan 370Z
Rep Power: 191
import111 has a reputation beyond reputeimport111 has a reputation beyond reputeimport111 has a reputation beyond reputeimport111 has a reputation beyond reputeimport111 has a reputation beyond reputeimport111 has a reputation beyond reputeimport111 has a reputation beyond reputeimport111 has a reputation beyond reputeimport111 has a reputation beyond reputeimport111 has a reputation beyond reputeimport111 has a reputation beyond repute
Send a message via Yahoo to import111
Default

Quote:
Originally Posted by 6MT View Post
Cough, cough.... forgive me, but that is pure "bovine scatology". Piston rings, especially very hard ones that are in this engine, take quite a long time to seat. Break-in period is quite long. For heavens sake people.... RELAX!! How long must this insanity continue before people will just give these engines 10K miles to properly break-in?

My engine..... 9500 miles..... oil consumption..... NIL!! Yes, it did use quite a bit of oil during the first 5 or 6 thousand miles. But now..... NOTHING. A B S O L U T E L Y N O R M A L !



(WOW)
Your engine is still young dude. Mine didn't start drinking too much oil until about 15k miles. I am at 17,700 and going through 2 quarts every 3k miles. Just because your engine is acting normal now doesn't mean there is no problem with any other 370Z engine on the face of the earth.
import111 is offline   Reply With Quote
Old 10-31-2010, 04:39 AM   #198 (permalink)
Track Member
 
Join Date: Apr 2009
Location: CA
Posts: 887
Drives: 09 NISSAN 370Z
Rep Power: 417
cab83_750 has a reputation beyond reputecab83_750 has a reputation beyond reputecab83_750 has a reputation beyond reputecab83_750 has a reputation beyond reputecab83_750 has a reputation beyond reputecab83_750 has a reputation beyond reputecab83_750 has a reputation beyond reputecab83_750 has a reputation beyond reputecab83_750 has a reputation beyond reputecab83_750 has a reputation beyond reputecab83_750 has a reputation beyond repute
Default

6mt is right.....in most cases!

I will however side Import111 in cases like his and mine. My first engine did not use oil until around 6k.

Quote:
Originally Posted by import111 View Post
Your engine is still young dude. Mine didn't start drinking too much oil until about 15k miles. I am at 17,700 and going through 2 quarts every 3k miles. Just because your engine is acting normal now doesn't mean there is no problem with any other 370Z engine on the face of the earth.
cab83_750 is offline   Reply With Quote
Old 10-31-2010, 09:13 AM   #199 (permalink)
Base Member
 
Join Date: Dec 2009
Location: Swiss
Posts: 39
Drives: 370z Roadster
Rep Power: 15
ZeeYouLater is on a distinguished road
Default

There are only two possibilities for hight oil consumption

may quality issues including normal human overload because of cost reduction on the powertrain production (price orientated hight power product not hand crafted) or coustomer rpm abuse at cold oil
a) piston and ring surface (honing in production)
b) intake valve

are the heads replaceable in the engine bay or does the engine has to be removed because of the abnormal "low" noise that was mentioned , this sounds more like a head problem. Abnormal piston noise is louder :-)

I have no oil consumtion @ 10k km with the first oil, what is normal for proper brake in and of course no abuse and all todays engines behave like this if there was no quality issue in production.. oil type of course didnt matter because of API (for the oil popes who belive in healing through blessed fluids..best indulgence discussions)
__________________
___________________________
7AT. NAVI. 19". (Sport and Touring Package)

Last edited by ZeeYouLater; 10-31-2010 at 09:25 AM. Reason: adding
ZeeYouLater is offline   Reply With Quote
Old 10-31-2010, 11:01 AM   #200 (permalink)
Base Member
 
hswen's Avatar
 
Join Date: Aug 2009
Location: Port Moody BC
Posts: 10
Drives: 09 370Z Black 6MT
Rep Power: 16
hswen is on a distinguished road
Default

Quote:
Originally Posted by gorillanismo View Post
finally, nobody know exactly what is the root of the problem???
Maybe this has something to do with it.

NISSAN | Ultra-low Friction Diamond-like Carbon (DLC)

H.
hswen is offline   Reply With Quote
Old 10-31-2010, 11:58 AM   #201 (permalink)
Base Member
 
Join Date: Dec 2009
Location: Swiss
Posts: 39
Drives: 370z Roadster
Rep Power: 15
ZeeYouLater is on a distinguished road
Default

Quote:
Originally Posted by hswen View Post
Maybe this has something to do with it.

NISSAN | Ultra-low Friction Diamond-like Carbon (DLC)

H.
__________________
___________________________
7AT. NAVI. 19". (Sport and Touring Package)
ZeeYouLater is offline   Reply With Quote
Old 10-31-2010, 12:02 PM   #202 (permalink)
A True Z Fanatic
 
spearfish25's Avatar
 
Join Date: Mar 2009
Location: Naples, FL
Posts: 4,117
Drives: to work
Rep Power: 1856
spearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond reputespearfish25 has a reputation beyond repute
Send a message via AIM to spearfish25
Default

Quote:
Originally Posted by hswen View Post
Maybe this has something to do with it.

NISSAN | Ultra-low Friction Diamond-like Carbon (DLC)

H.
I heard that low friction DLC just makes the oil 'slip' past the valve seals and burn off more easily
__________________
2013 Cadillac V-Wagon, RIP Z
spearfish25 is offline   Reply With Quote
Old 10-31-2010, 03:04 PM   #203 (permalink)
Base Member
 
kfscoll's Avatar
 
Join Date: Mar 2010
Location: Cincinnati, OH
Posts: 86
Drives: 09 370Z BS T/S/N 6MT
Rep Power: 15
kfscoll is on a distinguished road
Default

Quote:
Originally Posted by ZeeYouLater View Post
oil type of course didnt matter because of API (for the oil popes who belive in healing through blessed fluids..best indulgence discussions)
Huh?
__________________
2009 Brilliant Silver 370Z 6MT coupe w/ Touring, Sport, and Navigation packages
kfscoll is offline   Reply With Quote
Old 10-31-2010, 06:56 PM   #204 (permalink)
A True Z Fanatic
 
WarmAndSCSI's Avatar
 
Join Date: May 2010
Location: SLC, UT
Posts: 1,671
Drives: '08 Evo X | '10 370Z
Rep Power: 18
WarmAndSCSI is a splendid one to beholdWarmAndSCSI is a splendid one to beholdWarmAndSCSI is a splendid one to beholdWarmAndSCSI is a splendid one to beholdWarmAndSCSI is a splendid one to beholdWarmAndSCSI is a splendid one to behold
Default

So much misinformation in this thread. No piston rings take THOUSANDS of miles to break in, at least that should never be the case. With an OEM engine that has plateau-honed cylinder walls and pre-lapped piston rings, your rings and cylinder walls will break in within a matter of seconds. Really all you're doing in the first couple hundred miles is ensuring the peaks of the oiling cross hatch are flattened all the way (the plateau honing process gets most of this done) and that all of the valleys are cleaned out.

If you're having oil consumption past 1000 miles or so, there is likely something wrong that will rear its ugly head later. An engine has only so much "time" for a proper break-in to occur - after that window, your cylinder walls will likely be permanently glazed to some extent.

OEM-recommended break-in procedure is just CYA on their part.

That said, who knows where the root cause of the oil consumption problem on the VHR lies... Nissan will likely never admit to their fault. But I don't understand the point of a bunch of people who have probably never even touched the inside of an engine throwing around a bunch of conjecture. I'm fine if a bunch of experienced engine builders and tuners like myself want to have an intelligent, experience-based discussion proposing what the root cause might be, but what's going on in all of these oil recommendation and oil consumption threads is just asinine.
__________________

'10 PW 370Z 7AT - wife's car - Project Raspberry Cheesecake
'08 Evo X - built motor+trans | BB-X @ 32 psi | CH3OH | self-built+tuned - ??? WHP
'01 Galant V6 - built motor | GT35R | self-built+tuned - 550+ WHP (retired)

Last edited by WarmAndSCSI; 10-31-2010 at 07:00 PM.
WarmAndSCSI is offline   Reply With Quote
Old 10-31-2010, 07:42 PM   #205 (permalink)
A True Z Fanatic
 
cossie1600's Avatar
 
Join Date: Jun 2009
Location: californee way
Posts: 5,380
Drives: 370, Leaf
Rep Power: 30
cossie1600 has a reputation beyond reputecossie1600 has a reputation beyond reputecossie1600 has a reputation beyond reputecossie1600 has a reputation beyond reputecossie1600 has a reputation beyond reputecossie1600 has a reputation beyond reputecossie1600 has a reputation beyond reputecossie1600 has a reputation beyond reputecossie1600 has a reputation beyond reputecossie1600 has a reputation beyond reputecossie1600 has a reputation beyond repute
Default

Most of these engines are machine built. I wonder if it is a certain VIN range that is having trouble.
cossie1600 is offline   Reply With Quote
Old 11-01-2010, 02:33 PM   #206 (permalink)
Track Member
 
Join Date: May 2009
Location: SoCal
Posts: 887
Drives: BMW 335i Sport
Rep Power: 17
VCuomo will become famous soon enoughVCuomo will become famous soon enough
Default

Quote:
Originally Posted by WarmAndSCSI View Post
So much misinformation in this thread. No piston rings take THOUSANDS of miles to break in, at least that should never be the case. With an OEM engine that has plateau-honed cylinder walls and pre-lapped piston rings, your rings and cylinder walls will break in within a matter of seconds. Really all you're doing in the first couple hundred miles is ensuring the peaks of the oiling cross hatch are flattened all the way (the plateau honing process gets most of this done) and that all of the valleys are cleaned out.

If you're having oil consumption past 1000 miles or so, there is likely something wrong that will rear its ugly head later. An engine has only so much "time" for a proper break-in to occur - after that window, your cylinder walls will likely be permanently glazed to some extent.

OEM-recommended break-in procedure is just CYA on their part.

That said, who knows where the root cause of the oil consumption problem on the VHR lies... Nissan will likely never admit to their fault. But I don't understand the point of a bunch of people who have probably never even touched the inside of an engine throwing around a bunch of conjecture. I'm fine if a bunch of experienced engine builders and tuners like myself want to have an intelligent, experience-based discussion proposing what the root cause might be, but what's going on in all of these oil recommendation and oil consumption threads is just asinine.
What?!? How dare you be sensible! My God man, this is the Internet after all!!! You can't expect the voice of reason to carry the day - that will never do!


VCuomo is offline   Reply With Quote
Old 11-15-2010, 01:51 PM   #207 (permalink)
Base Member
 
Join Date: Dec 2009
Location: Swiss
Posts: 39
Drives: 370z Roadster
Rep Power: 15
ZeeYouLater is on a distinguished road
Wink

Quote:
Originally Posted by spearfish25 View Post
I heard that low friction DLC just makes the oil 'slip' past the valve seals and burn off more easily
This is not a problem of DLC, this is normal for all (0W60), 5W30 winter & summer oils that are put inside the engine because of a world wide climate selling strategic desicion because of a cheap purchase deal for this oil. This oil has a higher consumption if the engine is not hot (often short track driving MacDonald disease.. i have the 2 fast and 2 furious pick up tool ever..joking ) . Its only normal temperature tolerance with high viscosity oil.. physics ..thats all. That means not that this viscosity is a bad choise, it only has a higher consumtion than a 10W40 (allowed in the 370z german service manual) in the cold start phase..thats all. Of course its the best choice for the manufacturer.. But if you read the nissan bulletin..there must be a production issue too.. and that is not acceptable...
P.S. this funky oils kill the mass flow senor faster if you have a turbo engine and a high rpm longtime abuse driver in cold start phase and some age on the turbo bearing..selfdestruction procedure with the knowledge gap blubbering forum users...the preference dividend of the tuners (colored pullys)
__________________
___________________________
7AT. NAVI. 19". (Sport and Touring Package)

Last edited by ZeeYouLater; 11-15-2010 at 02:48 PM. Reason: 5W30
ZeeYouLater is offline   Reply With Quote
Old 11-15-2010, 02:44 PM   #208 (permalink)
Base Member
 
Join Date: Dec 2009
Location: Swiss
Posts: 39
Drives: 370z Roadster
Rep Power: 15
ZeeYouLater is on a distinguished road
Default

0W60 was advertised and sold in germany some years ago (6) ..sorry ******** product
__________________
___________________________
7AT. NAVI. 19". (Sport and Touring Package)
ZeeYouLater is offline   Reply With Quote
Old 11-16-2010, 09:10 AM   #209 (permalink)
Base Member
 
Join Date: May 2009
Location: Bristol, VA
Posts: 59
Drives: 09 370Z Bl 6MT
Rep Power: 16
6SPD_FTW is on a distinguished road
Default

I am at 28,000 miles, currently. Actually awaiting the oil analysis (to be done today @ Blackstone). Last oil report had an elevation in lead (which they attributed to a bearing streak...which makes me a little nervous).

I have used Castrol Syntec 0W-30 since 5000 miles and have had ZERO oil consumption beyond 1500 miles. Lower cold viscosity doesn't affect consumption that much on cold starts because it gets COLD here (single digits during the winter).

Just throwing that out there.

Late,
Trav
6SPD_FTW is offline   Reply With Quote
Old 11-16-2010, 05:23 PM   #210 (permalink)
A True Z Fanatic
 
FricFrac's Avatar
 
Join Date: Dec 2008
Location: Victoria, BC
Posts: 1,481
Drives: 370Z 300ZX 280ZX 240
Rep Power: 228
FricFrac has a reputation beyond reputeFricFrac has a reputation beyond reputeFricFrac has a reputation beyond reputeFricFrac has a reputation beyond reputeFricFrac has a reputation beyond reputeFricFrac has a reputation beyond reputeFricFrac has a reputation beyond reputeFricFrac has a reputation beyond reputeFricFrac has a reputation beyond reputeFricFrac has a reputation beyond reputeFricFrac has a reputation beyond repute
Send a message via ICQ to FricFrac
Default

Quote:
Originally Posted by WarmAndSCSI View Post
So much misinformation in this thread. No piston rings take THOUSANDS of miles to break in, at least that should never be the case. With an OEM engine that has plateau-honed cylinder walls and pre-lapped piston rings, your rings and cylinder walls will break in within a matter of seconds. Really all you're doing in the first couple hundred miles is ensuring the peaks of the oiling cross hatch are flattened all the way (the plateau honing process gets most of this done) and that all of the valleys are cleaned out.

If you're having oil consumption past 1000 miles or so, there is likely something wrong that will rear its ugly head later. An engine has only so much "time" for a proper break-in to occur - after that window, your cylinder walls will likely be permanently glazed to some extent.

OEM-recommended break-in procedure is just CYA on their part.

That said, who knows where the root cause of the oil consumption problem on the VHR lies... Nissan will likely never admit to their fault. But I don't understand the point of a bunch of people who have probably never even touched the inside of an engine throwing around a bunch of conjecture. I'm fine if a bunch of experienced engine builders and tuners like myself want to have an intelligent, experience-based discussion proposing what the root cause might be, but what's going on in all of these oil recommendation and oil consumption threads is just asinine.
..and saying that your rings are seated within a few seconds is just as much misinformation. Sure if you are cutting limbs off a tree with a chainsaw you can go through them in a few seconds but when you are wearing in rings which are very hard against your cylinder wall that are suppose to be resistant to wear you are going to "seat" in somewhat but definately not fully. You are basically machining materials which are resistant to wear and it doesn't take seconds. Show me ONE profesional racing team that races a car after a few seconds of break in.... not qualifying but a full race.

I agree with you that there is a lot of misinformation in this thread but going to the other extreme doesn't help.... there is enough exageration going on here. There are a hand full of motors that do suffer from oil consumption - just like any other manufacture.

For the record my oil consumption has significantly reduced in 15,000Km...
__________________
'09 370Z - '93 300ZX Vert - '83 280ZX - '83 280ZXT -'81 280ZXT stroker - '72 240Z - Stillen CBE, HFC, G3, Grounding Kit, Sways // Swift Spring // H&R 15mm // 5% Tint // Clear Bra //

Last edited by FricFrac; 11-16-2010 at 05:25 PM.
FricFrac is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
370 oil consumption hswen Engine & Drivetrain 47 08-11-2009 09:17 PM
What´s your real life fuel consumption? Autobahn Nissan 370Z General Discussions 38 06-12-2009 07:26 PM
Oil Consumption: In the clear? tbonesteak Engine & Drivetrain 6 04-02-2009 02:53 AM


All times are GMT -5. The time now is 10:44 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2