2004 VW Jetta TDI Delvac 1 3042 miles

[a4tdi]

O.K.,
Here is the first UOA with Delvac 1:

Vehicle type: 2004 VW Jetta PD
Oil type: Mobil Delvac 1
Miles on vehicle: 62,588
Miles on oil: 3042

Iron: 14
Chromium: 1
Lead: 2
Copper: 3
Tin: 0
Aluminum: 5
Nickel: 0
Silver: 0
Silicon: 4
Boron: 45
Sodium: 3
Potassium: 2
Magnesiuim: 291
Calcium: 2130
Phosphorus: 1036
Zinc: 1299
Molybdenum: 0
Fuel: A
Water: Glycol: N
Visc@ 100c: 13.3
TBN: 10.00
Soot: Oxidation: 13.00
Nitration: 7.00

Analysis by AV Lube/Predictive Maintenance Services.

 

[The Critic]

If memory serves me correctly, most of the 5K drains I saw on TDIClub had a higher wear rate per 1000 miles than the 10K drain. Perhaps this was caused by the initial additive clash when changing oil formulas and causes a higher wear rate during the first 1-2K ???

I'd be interested in seeing the results after 10K, I bet the Iron would be lower on a per 1000 mile basis.

 

[a4tdi]

Michael,
Exactly my thoughts too. Frankly, I didn't expect to find much in a 3k sampling, but thought it prudent since I'm sailing into uncharted waters.

FWIW, here is my last UOA on 505.01:

http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=26;t=000260

 

[Brons2]

iron wear a bit higher on ppm/1Kmi basis, otherwise it's looking good.

 

[ChiTDI]

a4tdi
Delvac 1 delivers the goods. Again.
A 10.0 TBN is pretty good. Yuck yuck.
Where would the numbers show that the PD is unhappy with your choice? (For my own info)

 

[a4tdi]

Very high iron numbers would indicate a problem in the PD cam/rollers. I have heard of a PD engine going over 60k on Delvac 1 and it still showed excellent wear numbers fo Fe.