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#1
06-28-2002, 08:43 AM
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Need Help with Oil Analysis Results
This is not on my MB, but in the VW Jetta TDI. Thanks upfront.
Mobil Delvac 1 5w40 No make up oil 6200 miles on oil and filter Miles on unit 197,424 Stock spin-on filter Glycol NEG Water <0.05% Fuel <1.0% Viscosity @100c 17.4 Soot 1.8 Oxd % 8.9 Nox % 14.3 TBN 12.1 Iron 16 Chromium 0 Lead 0 Copper 0 Tin 0 Aluminum 4 Nickel 0 Silver 0 Manganese 1 Silicon 4 Boron 36 Sodium 0 Magnesium 44 Calcium 1988 Barium 0 Phosphorus 971 Zinc 1086 Mo 0 Ti 0 V 0 Cd 0 Oil is suitable for reuse Change full flow filter, if not done when sampled Top off system Resample at next regular interval
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Lance Allison Lance@LanceAllison.com Current: 11 MB S550 4Matic, 55k miles, Designo Black/Black 14 Ford F150 XLT Lariat Crew, 73k miles, 5.0 Coyote V8 4x4. Black/tan. 09 GMC Envoy Denali, 5.3 V8, 4x4 SWB. 38k miles, Jewel Red/Med Gray. Gone: 87 MB 300SDL, 320k miles, Astral Silver/Blue. 98 VW Jetta TDI, 488k miles, Classic Green/Gray. 85 Olds 98 Brougham FWD, 4.3 DIESEL V6, 80k miles, 3x Gray. MBCA Member, Chicago Region 
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#2
06-28-2002, 09:57 AM
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Lance:
Somehow your oil has thickened considerably. The virgin Delvac 1 5W-40 should have a viscosity around 15.0 cSt at 100 deg C.
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#3
06-28-2002, 11:51 AM
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Wonder why? I did replace the headgasket, turbo, injectors, and water pump over the past 10k miles. Right after the headgasket change, I ran some Delvac 1300 15w40 through for about 1000 miles as a flush to get rid of any coolant traces...do you suppose some of that thickened up the Delvac 1?
I changed the oil and filter after 1000 miles replacing the Delvac 1300 with Delvac 1, but I suppose there could have been enough residual left????
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Lance Allison Lance@LanceAllison.com Current: 11 MB S550 4Matic, 55k miles, Designo Black/Black 14 Ford F150 XLT Lariat Crew, 73k miles, 5.0 Coyote V8 4x4. Black/tan. 09 GMC Envoy Denali, 5.3 V8, 4x4 SWB. 38k miles, Jewel Red/Med Gray. Gone: 87 MB 300SDL, 320k miles, Astral Silver/Blue. 98 VW Jetta TDI, 488k miles, Classic Green/Gray. 85 Olds 98 Brougham FWD, 4.3 DIESEL V6, 80k miles, 3x Gray. MBCA Member, Chicago Region Last edited by Lance Allison; 06-28-2002 at 11:59 AM.
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#4
06-28-2002, 03:30 PM
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I can't say for sure but 1.8% soot will cause the oil to thicken some. The higher viscosity doesn't seem out of line or alarming to me.
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Tom Savage Vienna, WV 1984 300D Euro 1995 S320
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