Recent Topics
What does E85 smell like ?
by Merkava_4
31 minutes 47 seconds ago
Thoughts on General Grabber AT2
by Camprunner
Today at 02:46 AM
Collinite 845 over Meguiars Cleaner Wax
by bobbob
Today at 12:57 AM
Micro Guard MGL 3682 (4k miles)
by stang5
Today at 12:40 AM
Echo Trimmer Carb rebuild, er upgrade
by Team_FAST
Yesterday at 11:02 PM
Dodge Hellcat acceleration times released
by 901Memphis
Yesterday at 10:42 PM
Questions about Castrol TWS / Edge Professional
by bimmerdriver
Yesterday at 09:38 PM
Pennzoil HM 5w20 in new car
by wemay
Yesterday at 09:27 PM
Recalls & more recalls. Cars are now too complex!
by antiqueshell
Yesterday at 09:23 PM
Honda MM logic vs. BITOG logic
by Pajamarama
Yesterday at 09:07 PM
Alignment done on my ranger
by Blkstanger
Yesterday at 08:47 PM
MMO suggestions!
by lawman1909
Yesterday at 08:38 PM
Newest Members
tjon, Jonlee89, Tripletsredxj, Brophy, Mamba
50749 Registered Users
Who's Online
10 registered (bluedak, DSparks, Mathson, Fleetmon, mattwithcats, 1 invisible), 807 Guests and 249 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
50749 Members
64 Forums
216755 Topics
3411659 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Topic Options
#3271266 - 02/05/14 11:52 AM Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE
jsharp Offline


Registered: 12/25/02
Posts: 3585
Loc: Outside smalltown, IL


Latest UOA from my G35. Note that this was not M1 5W-30 but 0W-30 AFE. A mistake when I submitted the sample.

Previous UOA here - http://www.bobistheoilguy.com/forums/ubbthreads.php/ubb/showflat/Number/2939476

The lead is way up but nothing else seems unusual to me. I did change the plugs during this interval and used a good amount of anti-seize. Otherwise I don't have an explanation.

As always, comments welcome!

Top
#3271457 - 02/05/14 02:37 PM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: jsharp]
dparm Offline


Registered: 04/19/10
Posts: 12333
Loc: Chicago, IL
Eh, it's a minor spike. Watch it on the next one.

Which particular motor does your G35 have, the VQ35DE or VQ35HR?
_________________________
2011.5 BMW M3 saloon ZCP
der stärkste buchstabe der welt
Castrol Edge Professional TWS 10w60 + Mahle OX 254D3

Top
#3271484 - 02/05/14 03:05 PM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: jsharp]
147_Grain Offline


Registered: 03/11/13
Posts: 1260
Loc: USA
IF I had your vehicle, I wouldn't go over 7,500 miles with the 3.5L VQ35DE engine (that is very hard on oil) and maybe only 5,000 depending on the driving style.

Do you think the extra anti-seize got into the cylinder or oil?
_________________________
2013 Subaru Outback Limited H6 AWD
2013 Toyota Corolla LE
2012 Toyota Corolla LE
2005 Dodge Neon SXT

Top
#3271596 - 02/05/14 04:58 PM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: 147_Grain]
dparm Offline


Registered: 04/19/10
Posts: 12333
Loc: Chicago, IL
Originally Posted By: 147_Grain
IF I had your vehicle, I wouldn't go over 7,500 miles with the 3.5L VQ35DE engine (that is very hard on oil) and maybe only 5,000 depending on the driving style.

Do you think the extra anti-seize got into the cylinder or oil?



The VQ35DE is not that hard on oil. The HR is a bit harder, but it's the VQ37 motors that really stress it.
_________________________
2011.5 BMW M3 saloon ZCP
der stärkste buchstabe der welt
Castrol Edge Professional TWS 10w60 + Mahle OX 254D3

Top
#3272244 - 02/06/14 08:47 AM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: 147_Grain]
jsharp Offline


Registered: 12/25/02
Posts: 3585
Loc: Outside smalltown, IL
Originally Posted By: dparm
Eh, it's a minor spike. Watch it on the next one.

Which particular motor does your G35 have, the VQ35DE or VQ35HR?


It's a DE in 2003 sedan

Originally Posted By: 147_Grain
IF I had your vehicle, I wouldn't go over 7,500 miles with the 3.5L VQ35DE engine (that is very hard on oil) and maybe only 5,000 depending on the driving style.

Do you think the extra anti-seize got into the cylinder or oil?


No telling on the anti-seize. I've had these high lead numbers on other vehicles and have never been able to explain it. I would think if the lead numbers are rising I would also see other metals rising but just like in the other cases I'm not seeing it. Maybe I don't know what I'm looking at...

Top
#3272275 - 02/06/14 09:07 AM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: jsharp]
tig1 Offline


Registered: 01/03/09
Posts: 9696
Loc: Illinois
Tin is part of babbit bearings which in this case tin is 0. If this was a bearing spike then there should be several PPM of tin. Since UOAs are often inaccurate, so maybe the problem is the UOA. We've seen it before. If the bearings are a alum bi-metal materal, then the lead would be from someplace else.
_________________________
2007 Ford Fusion 138,000 miles
M1 0-20
2007 Ford Focus 126,000 miles
M1 0-20
10,000 mile OCIs on both engines
M1 ATF
M1 10-30 in all OPE

Top
#3272337 - 02/06/14 09:51 AM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: tig1]
jsharp Offline


Registered: 12/25/02
Posts: 3585
Loc: Outside smalltown, IL
Originally Posted By: tig1
Tin is part of babbit bearings which in this case tin is 0. If this was a bearing spike then there should be several PPM of tin. Since UOAs are often inaccurate, so maybe the problem is the UOA. We've seen it before. If the bearings are a alum bi-metal materal, then the lead would be from someplace else.


My thoughts also. I've been seeing the same thing on my 4Runner for multiple intervals. Elevated lead but no tin, minimal copper etc. I don't get it...


Edited by jsharp (02/06/14 09:52 AM)

Top
#3277125 - 02/10/14 02:35 PM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: jsharp]
k1rod Offline


Registered: 12/17/06
Posts: 258
Loc: Arizona
It seems strange that the lab is flagging the Base Number at 3.25 as "abnormal". I can't imagine how that would be "abnormal".

Top
#3277147 - 02/10/14 02:54 PM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: k1rod]
Garak Offline


Registered: 12/05/09
Posts: 10976
Loc: Regina, Saskatchewan, Canada
I don't know what this lab's procedure is, but some use a different testing method and use a different condemnation point.
_________________________
Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Hastings LF113
1984 F-150 4.9L six - Quaker State GB 10w-30, Wix 51515

Top
#3277473 - 02/10/14 09:11 PM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: jsharp]
CBR.worm Offline


Registered: 05/10/05
Posts: 1381
Loc: Jupiter, Fl
My impression is that All the vq35 motors are hard on oil when mated to a G35 or 350z. The 3.7 motor is hard on oil in a totally different way. One shears,the other cooks and shears.

Edit: this only applies if you drive it the way they lead you to believe is intended.


Edited by CBR.worm (02/10/14 09:12 PM)
_________________________
'06 Infiniti G35 Sedan 6MT - 145k

Top
#3282038 - 02/14/14 02:01 PM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: tig1]
Phishin Offline


Registered: 05/01/12
Posts: 1427
Loc: Indiana
Originally Posted By: tig1
Tin is part of babbit bearings which in this case tin is 0. If this was a bearing spike then there should be several PPM of tin. Since UOAs are often inaccurate, so maybe the problem is the UOA. We've seen it before.


I'm an analytical chemist. And I run an ICP all day. I'm actually writing this post from the computer that runs the ICP in my lab.

One thing to note is: Lead is VERY "sticky" in an ICP. It has a long lasting "shadow". If a heavy lead sample was run right before your sample, the lead from the previous sample can stick around inside the instrument and "bleed off" when your sample is run. Thus, it appears you have elevated levels of lead in your oil sample.

Another very sticky element is silver, but we don't worry about that on BITOG.
_________________________
2010 Accord-LX K24: PU 5w30
2009 Subaru Forester 2.5X: M1 5w40 TDT
1990 Chevy K1500 350TBI: Frankenbrew
2008 Ruckus 50ccGET: M1R Mix

Top
#3287588 - 02/19/14 07:12 PM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: jsharp]
razel Offline


Registered: 06/28/03
Posts: 112
Loc: Los Angeles, CA
Things look great for a 11 year old car with 118k. Like others I would move on and keep doing with the oil reports. It's the best way to stay on top of it. Those numbers are in ppm and if you sent it to another lab you'll get a different number.

Same characteristics, but a different number.

Top
#3291659 - 02/23/14 12:43 PM Re: Mobil 1 0W-30, 11036 miles, Infinity 3.5L VQ35DE [Re: razel]
jsharp Offline


Registered: 12/25/02
Posts: 3585
Loc: Outside smalltown, IL
Originally Posted By: razel
Things look great for a 11 year old car with 118k. Like others I would move on and keep doing with the oil reports. It's the best way to stay on top of it. Those numbers are in ppm and if you sent it to another lab you'll get a different number.

Same characteristics, but a different number.


I was never one to panic over UOA numbers. I do an analysis at every change to watch for potentially disastrous things that can be easily fixed like a coolant leak. A high lead number like this or the similar numbers I've seen on my 4Runner may be a source for worry but it's not like I'd ever tear an engine down over a UOA result. I'll wait until it fails and fix it then.


Edited by jsharp (02/23/14 12:43 PM)

Top