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#2274025 - 05/29/11 04:47 PM BMW 5W30, .300 miles, 2002 M5
swingwing Offline


Registered: 05/11/10
Posts: 13
Loc: Texas
Looking at buying this car, so took oil sample, which seller had never seen before. Analyst flagged fuel dilution and nitration. Viscosity at low end for 30. When I called fuel dilution to his attention, seller said his mechanic says "No problem - they're all like that." Me, I think there's a leaking injector(s).


Code:
OIL             BMW 5W30  
MILES IN USE    0.3k     
MILES           67.4k   
SAMPLE TAKEN    5/19/11  

ALUMINUM        3         
CHROMIUM        0        
IRON            17       
COPPER          5       
LEAD            7       
TIN             0        
MOLYBDENUM      109       
NICKEL          0        
MANGANESE       0        
SILVER          0        
TITANIUM        0        
POTASSIUM       0       
BORON           50       
SILICON         5        
SODIUM          15       
CALCIUM         2184     
MAGNESIUM       23      
PHOSPHORUS      821      
ZINC            1016     
BARIUM          0
     
INSOLUBLES      0      
WATER           <.1        
FLASHPOINT F   N/A      
SUS VIS 210F   N/A     
cSt @ 212F     10.7
FUEL DILUTION%  4.1
TBN             5.85
OXIDATION	14
NITRATION	22
_________________________
2008 Ford Sport Trac Adrenalin - DD, AMSOIL Sig Series 0W-20
2007 MB C230 Sport - AMSOIL 5W30 Euro

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#2274026 - 05/29/11 04:49 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
swingwing Offline


Registered: 05/11/10
Posts: 13
Loc: Texas
Sorry, typo in Subject line. Should be 300, or .3K miles.
_________________________
2008 Ford Sport Trac Adrenalin - DD, AMSOIL Sig Series 0W-20
2007 MB C230 Sport - AMSOIL 5W30 Euro

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#2274028 - 05/29/11 04:51 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
Quattro Pete Offline


Registered: 10/30/02
Posts: 27641
Loc: Great Lakes
How was that 300 miles driven prior to taking the sample? If it was mostly short trips, then I'm not surprised to see this level of fuel.

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'02 530i (PU 5W-40)
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#2274031 - 05/29/11 04:54 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
JHZR2 Offline



Registered: 12/14/02
Posts: 35319
Loc: New Jersey
Is it DI?

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#2274032 - 05/29/11 04:55 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
swingwing Offline


Registered: 05/11/10
Posts: 13
Loc: Texas
Car has been in seller's garage and not driven much. Fuel dilution level is abnormal.
_________________________
2008 Ford Sport Trac Adrenalin - DD, AMSOIL Sig Series 0W-20
2007 MB C230 Sport - AMSOIL 5W30 Euro

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#2274033 - 05/29/11 04:56 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: JHZR2]
swingwing Offline


Registered: 05/11/10
Posts: 13
Loc: Texas
Sorry, what is DI?
_________________________
2008 Ford Sport Trac Adrenalin - DD, AMSOIL Sig Series 0W-20
2007 MB C230 Sport - AMSOIL 5W30 Euro

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#2274042 - 05/29/11 05:03 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
swingwing Offline


Registered: 05/11/10
Posts: 13
Loc: Texas
Review of maintenance records shows oil changes with BMW 5W30. I was really expecting to see 10W60 for this S62 engine.
_________________________
2008 Ford Sport Trac Adrenalin - DD, AMSOIL Sig Series 0W-20
2007 MB C230 Sport - AMSOIL 5W30 Euro

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#2274043 - 05/29/11 05:08 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
typ901 Offline


Registered: 07/13/08
Posts: 756
Loc: N. 'Burbs of Chicago, IL
Originally Posted By: swingwing
Review of maintenance records shows oil changes with BMW 5W30. I was really expecting to see 10W60 for this S62 engine.


I thought that BMW approved 5w30 for post 2000-early 2001 models when they did a redesign on the piston rings, to combat oil consumption

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#2274051 - 05/29/11 05:22 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
swingwing Offline


Registered: 05/11/10
Posts: 13
Loc: Texas
They may have. BMW replaced a lot of E46 M3 engines because their recommended 5W30 oil just couldn't give the protection needed. If I end up buying this car, one of first things it gets is oil change with Amsoil Premium Protection 20W50 or Racing Dominator 15W50.
_________________________
2008 Ford Sport Trac Adrenalin - DD, AMSOIL Sig Series 0W-20
2007 MB C230 Sport - AMSOIL 5W30 Euro

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#2274059 - 05/29/11 05:31 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
Artem Offline


Registered: 10/30/10
Posts: 4501
Loc: Florida
Whoa, that's a lot of fuel in that sample.
_________________________
2011 Toyota Avalon 3.5L V6 - 55k - 0w30 Mobil 1

2014 RAM 3500HD work truck - tows 30k pounds!

2014 Mazda 3 Hatch i Touring 2.0L & 6spd - Mazda 0w20

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#2274074 - 05/29/11 05:52 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
toyotapriusguy Offline


Registered: 12/14/10
Posts: 138
Loc: California
Maybe he's been idling it a lot. Perhaps ask to take it on an extended drive, spend an hour or so zipping down the highway and resample?

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#2274102 - 05/29/11 06:31 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
swingwing Offline


Registered: 05/11/10
Posts: 13
Loc: Texas
Nope, no extended idling. Car's been sitting for last few months, driven lightly on sales test drives. Seller is flipping cars, but is selective on what he buys.
_________________________
2008 Ford Sport Trac Adrenalin - DD, AMSOIL Sig Series 0W-20
2007 MB C230 Sport - AMSOIL 5W30 Euro

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#2274110 - 05/29/11 06:47 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
SrDriver Offline


Registered: 12/09/06
Posts: 2538
Loc: Southeast Alabama
If it were me I would look around some more at other vehicles.

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#2274134 - 05/29/11 07:26 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
tinmanSC Online   content


Registered: 09/07/10
Posts: 2067
Loc: Oswego, IL
Originally Posted By: swingwing
Nope, no extended idling. Car's been sitting for last few months, driven lightly on sales test drives. Seller is flipping cars, but is selective on what he buys.

This actually looks ok for what I assume is just a bunch of very short trips. You said this was driven as test drives. Mostly harder driving when still warming up, this accounts for the wear numbers and the fuel. While it is possible to have a leaky injector, this type of driving would probably produce this result even without a leaky injector.
_________________________
Cost of Hobby=2L
(Where L=Cost of Lubricant)
95 Lexus SC300 5-spd@200K, 2000 GS300@125K both VML Full Syn+Purolator PSL20195(soon to be Wix)

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#2274136 - 05/29/11 07:31 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: swingwing]
swingwing Offline


Registered: 05/11/10
Posts: 13
Loc: Texas
Yep, am looking around. The E39 M5 is a very special BMW, arguably one of the finest sedans they've produced - iron fist in a velvet glove.
_________________________
2008 Ford Sport Trac Adrenalin - DD, AMSOIL Sig Series 0W-20
2007 MB C230 Sport - AMSOIL 5W30 Euro

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#2274143 - 05/29/11 07:40 PM Re: BMW 5W30, .300 miles, 2002 M5 [Re: tinmanSC]
swingwing Offline


Registered: 05/11/10
Posts: 13
Loc: Texas
C'est possible. Car's at 67K miles, due BMW Insp II items - and more since this is an M car.
_________________________
2008 Ford Sport Trac Adrenalin - DD, AMSOIL Sig Series 0W-20
2007 MB C230 Sport - AMSOIL 5W30 Euro

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