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#586218 - 08/04/02 05:00 PM 15,000 miles Cat-branded Delvac1 5W-40
troy_heagy Offline


Registered: 07/31/02
Posts: 179
Loc: Forest Hill MD
Another data point for folks looking to compare their numbers. transferred to favorite links

Vehicle: 1998 Jetta TDI
Mods: None except for "yellow light" EGR mod
Air filter: OEM paper
Oil filter: OEM, changed at 5K intervals
Bypass filter: None
Oil: Caterpillar-branded Delvac 1
Fuel: Amoco Powerblend with ~8 oz Power Service Diesel Fuel Supplement (last ~1500 miles 65/35 mix of Powerblend and World Energy B100)

Mostly highway mileage. Total vehicle miles ~74K.

code:
Miles:    5059  9698 14307
Glycol: NEG NEG NEG
%Water: <.05 <.05 <.05
%Fuel: <1.0 <1.0 <1.0
Visc@40: NA NA NA
Visc@100: 15.5 14.9 15.4
%Solids: NA NA NA
Soot: 1.0 <1.0 1.1
%Oxd: 11.1 13.3 15.6
%Nox: 20.0 22.9 25.7
TBN: 11.6 11.1 10.3
Fe: 27 16 26
Cr: 2 1 1
Pb: 1 1 3
Cu: 1 1 2
Sn: 0 1 1
Al: 6 7 6
Ni: 0 1 2
Ag: 0 0 0
Mn: 0 0 0
Si: 5 4 5
B: 34 36 34
Na: 1 2 2
Mg: 354 333 331
Ca: 1245 1206 1247
Ba: 0 0 0
P: 966 940 936
Zn: 1170 1151 1160
Mo: 24 0 0
Ti: 0 0 0
V: 0 0 0
Cd: 0 0 0

During the first interval I brought the car to the dealer to diagnose what looked like failing turbo seals (oil dripping down onto the inner CV joint). The dealer cleaned up the area around the turbo and added a tracer to the oil, and when I brought it back after about 100 miles they held a black light up to it and determined it was a loose oil return line. I don't know what the chemical makeup of the tracer was, but it didn't seem to skew the analysis results any.

What say the experts - would I be pushing my luck to drag it out to 20K?

-Scott

[ August 05, 2002, 09:32 AM: Message edited by: BOBISTHEOILGUY ]

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#586219 - 08/05/02 04:17 AM Re: 15,000 miles Cat-branded Delvac1 5W-40
The_Oz Offline


Registered: 07/24/02
Posts: 349
Loc: Quebec, Canada
I'm curious to know why Iron is pretty high and the rest of the wear metals are pretty low. TBN and Oxidation #s look really good. I hope that's how my gasser turns out when it comes time for analyzing.

Regards,

Oz

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#586220 - 08/15/02 06:52 PM Re: 15,000 miles Cat-branded Delvac1 5W-40
dragboat Offline


Registered: 06/04/02
Posts: 1933
Loc: Oklahoma
Any guess as to why he moly went away? Maybe what little was there plated to the parts?

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#586221 - 08/15/02 06:58 PM Re: 15,000 miles Cat-branded Delvac1 5W-40
Patman Offline



Registered: 05/27/02
Posts: 19247
Loc: Oakville, Ontario
quote:
Originally posted by dragboat:
Any guess as to why he moly went away? Maybe what little was there plated to the parts?

I don't think this oil comes with moly to begin with. The first sample probably just had leftover moly from the previous oil?

[ August 16, 2002, 09:59 AM: Message edited by: Patman ]

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#586222 - 08/16/02 05:01 AM Re: 15,000 miles Cat-branded Delvac1 5W-40
TooSlick Offline


Registered: 08/02/02
Posts: 5785
Loc: Dixie
patman,

Castrol uses a bit of moly in the 5w-40, VW 505 spec synthetic they blend especially for VW and Audi....

Ted

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