Gumout GDI Q&A Answers

click here for the Gumout GDI Q&A answers

Recent Topics
My new 2015 Challenger
by casamagana
Today at 01:08 AM
Quick question 2013 f150
by anylettuce
Yesterday at 11:39 PM
Moto E smart phone
by oilboy123
Yesterday at 11:37 PM
S2000 - Will 9000 rpm and M1 0W30 AFE be ok?
by BrennanF
Yesterday at 11:01 PM
New Truck buying advice
by maximus
Yesterday at 10:14 PM
Would you use this or toss it?
by NoNameJoe
Yesterday at 09:40 PM
How do I unsubscribe from a thread on here?
by GerGa
Yesterday at 09:39 PM
Wiper Blade Recommendations?
by Tony_Mack
Yesterday at 08:59 PM
DT 4th of July sale - reserved on line - disaster.
by howie2092
Yesterday at 08:42 PM
Found a nice old Jeep Cherokee
by skyactiv
Yesterday at 08:34 PM
Chinese stock market near crash status 2008 repeat
by GiveMeAVowel
Yesterday at 08:11 PM
Is not leaking oil changing the oil?
by donba
Yesterday at 08:06 PM
Newest Members
Ken41, TJ_Hayden, Jake54, mctmatt, Vincelum
54596 Registered Users
Who's Online
28 registered (armenakadino, 901Memphis, AMC, Atlantis, 29662, 3 invisible), 626 Guests and 77 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
54596 Members
66 Forums
233886 Topics
3756935 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Page 2 of 2 < 1 2
Topic Options
#2549871 - 02/27/12 06:34 AM Re: UOA's and Engine Wear (again) [Re: INDYMAC]
pjf Offline


Registered: 01/30/12
Posts: 66
Loc: Colorado
The plan is to save my samples (VOA & UOA) every 1,000 miles until you tell me which lab can give me a good test for transmission wear.

I suggested WearCheck because its elemental reports are more complete and includes sulfur (see links). I don't know the quality of its particle analysis. Thanks!

Top
#2550128 - 02/27/12 11:42 AM Re: UOA's and Engine Wear (again) [Re: INDYMAC]
Quattro Pete Offline


Registered: 10/30/02
Posts: 28653
Loc: Great Lakes
Originally Posted By: INDYMAC
I really like both of these formats. Do you have to choose? Can you afford both until you decide to stick with one format over the other?

Wearcheck sets up an account for you on their web portal. Once you log in, you can access all these reports pertinent to whichever UOA service you requested (MOB2, MOB3, etc.).

You would normally start with MOB2, and only if the results turned up something abnormal, you would then request additional MOB3 test.
_________________________
'02 530i (PPE 5W-40)
'15 Q5 3.0T (Edge 5W-40)

Top
#2550185 - 02/27/12 12:31 PM Re: UOA's and Engine Wear (again) [Re: Quattro Pete]
pjf Offline


Registered: 01/30/12
Posts: 66
Loc: Colorado
I already have an account with WearCheck. MOB-3 provides analytical ferrography (ASTM WK15810) for diagnosis of wear causality but does not provide a measurement of wear. It costs an additional $189 over the more common MOB-2 ($24) analysis.

I've collected VOA samples as a baseline. My UOA samples will be collected on the same transmission. The only variable between sampling periods may be the transmission fluid in order to compare the anti-wear performance of different fluids.

For UOA, is MOB-2 sufficient for measuring wear? If not, which ASTM test provides a more credible wear measurement?

Top
#2550367 - 02/27/12 02:54 PM Re: UOA's and Engine Wear (again) [Re: pjf]
Quattro Pete Offline


Registered: 10/30/02
Posts: 28653
Loc: Great Lakes
Originally Posted By: pjf

For UOA, is MOB-2 sufficient for measuring wear?

I'm afraid that none of these $20 UOAs are sufficient for measuring wear. That is not what such tool was designed for. Instead, it should be used as a trending tool and a tool to help determine the condition of the oil and detect if you have any contaminants (fuel, coolant, water).

http://www.bobistheoilguy.com/used-oil-analysis/

As you do your trending, if you see something that sticks out quite a bit, then it sounds like this MOB-3 would help give more info regarding wear.
_________________________
'02 530i (PPE 5W-40)
'15 Q5 3.0T (Edge 5W-40)

Top
#2552450 - 02/29/12 02:00 PM Re: UOA's and Engine Wear (again) [Re: buster]
ammolab Offline


Registered: 01/16/06
Posts: 572
Loc: Ruidoso, NM USA
A Blackstone Oil Analysis on my BMW M Coupe was showing Lead and Copper about Ten times the average for this engine (S54). As these powerplants have very fragile Rod Bearings, I had a local shop pull the Oil Pan to find #2 Rod Bearing worn down to pure copper. They said I would have lost the engine at some point in the near future.

Spotted wear for me!

http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2496835&page=1
_________________________
2009 Honda CR-V
2002 BMW M Coupe
2011 BMW R1200R
1986 BMW K75C
2005 Kaw Ninja 250
1994 Jeep Wrangler 2.5L

Top
#2552784 - 02/29/12 07:38 PM Re: UOA's and Engine Wear (again) [Re: buster]
Cujet Offline


Registered: 02/15/03
Posts: 4845
Loc: Jupiter, Florida
I will never dispute that the common UOA can spot wear. Especially if you have a trend to watch. We use the simple tests for helicopter main transmission oil. Iron clearly shows up when wear is becoming a problem.

Here is a typical UOA from our heli main gearbox:

Iron 0.5, Copper 0, Nickel 0, Chromium 0, Silver 0 , Magn 0, Alum 0, Lead 0, Silicon 0.7, Titanium 0.2, Tin 0, Moly 0, H2O 1200.

In this case, when iron gets to about 15PPM, the gears are wearing abnormally.
_________________________
Turbo's rule.

Top
Page 2 of 2 < 1 2