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#586096 - 12/16/02 04:02 AM Delvac 1 results in 2002 Jetta TDI(diesel)
Lightman Offline


Registered: 09/17/02
Posts: 150
Loc: Cleveland, OH
Ok guys heres my first test of the tdi. Wetterauer chip installed at 20k, I run the Oilguard bypass filter, b100 fuel exclusively aside from 2 tanks of b20 during this 10k.
Oil analyzers/ctc lab
Delvac 1
10,200 miles on oil
30,200 on vehicle at test time.

Spectrochemical
Iron 43
chromium 3
lead 1
copper 6
tin 9 or possibly 0, the fax is a bit blurry, but I believe 9
aluminum 5
nickel 1
silver again, 9 or 0, looks like a 9
Silicon 7 (stock paper filter)
boron 106
sodium 2
magnesium 550
calcium 2544
barium 0
phosphorus 1233
zinc 1317
moly, titanium, vanadium, and potassium all zero.

Physical Properties
fuel <1
vis @100c 14.13
water 0
soot/solids 0.9%
Glycol negative

Additional tests
TBN 7.21
Oxid 11.0
nitr 13.0
f-soot 0.27

Ok Oil gurus, have at it...please let me know what you think. Whats the difference between f-soot and soot/solids? Do we think the tbn really depleted all the way to 7.2 or is this the characteristic problem with CTC's analyses, as has been mentioned previously.....?

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#586097 - 12/16/02 04:08 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Patman Offline



Registered: 05/27/02
Posts: 19718
Loc: Oakville, Ontario
I thought the bypass filters were supposed to virtually eliminate engine wear, yet the iron looks awfully high.

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#586098 - 12/16/02 04:11 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Terry Offline


Registered: 05/27/02
Posts: 3845
Loc: Greenville , Texas
NO offense lightman but why don't you ask those questions of the lab that you paid to analyze the oil ?

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#586099 - 12/16/02 04:29 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Lightman Offline


Registered: 09/17/02
Posts: 150
Loc: Cleveland, OH
Terry, no offense, but what is this site for? [Roll Eyes]

Regarding my CTC lab question, it arose because Ted/tooslick had mentioned before that CTC's tbn ratings are generally lower than oil analyzers', so if I was to be comparing tbn results, expect a bit lower from CTC's lab.

Patman, do you really think iron is that high at 43 after 10,200 miles on a chipped car?

I should also note, that b100 biodiesel fuel was used the whole time, aside from two tanks of b20...in case ppl missed that..

To others who may actually have helpful responses...please do [Smile]

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#586100 - 12/16/02 04:37 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Terry Offline


Registered: 05/27/02
Posts: 3845
Loc: Greenville , Texas
I wasn't being smart or attempting to jerk you Lightman, I just can't believe that a service would not inform its customers more than that. [I dont know]

I'm outta this string. [Duh!]

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#586101 - 12/16/02 04:43 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Lightman Offline


Registered: 09/17/02
Posts: 150
Loc: Cleveland, OH
No hard feelings going around, ppl relax [Smile] . Anyway, I figure ppl here have a good opinion as they've seen a lot of results. Also there are a few experts that do lurk around this forum. I've heard back from a few ppl and it seems the b100 has possibly diluted the fuel a bit.

Apparently also, CTC's results(according to tooslick) have generally been showing about 1.5 pts lower than Oil analyzers results.

I would use a different lab entirely if I hadn't of bought 10 kits a few years ago from OA. Now they sub out their lab work to CTC, which takes forever. They had my sample nearly two weeks before I got results... I agree, the service is poor, but I've already paid unfortunately. It was pretty good service when OA was doing them a while back...

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#586102 - 12/16/02 05:16 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Giles Offline


Registered: 12/02/02
Posts: 403
Loc: California
I'm surprised by the total number of solids in your sample based upon having a bypass filter. I'm not familiar with Diesel oil results however. This looks like a case where a professional opinion may be warranted.

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#586103 - 12/16/02 05:18 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Terry Offline


Registered: 05/27/02
Posts: 3845
Loc: Greenville , Texas
So I lied, I'm back. [freaknout]

F soot is fuel soot for the diesel. Soot solids is a combined reading of oil solids due to nitration and coking. Those look average to slightly on the clean side. Is the EGR gumming up or remaining clean using the BD?

Air filtration is excellent.

TBN is fine and normal, depends on what method they use to titrate the oil, don't worry about the value but compare to next sample.

Every value is normal for a stock TDI so with you having the chip changing things and burning a little hotter it looks very good.

The wear metal generation at approx. 4 ppm per 1000 miles is normal for these engines.

Silver should be 0 not 9 and if its 9 I would think the coating on the turbo is coming off really early on. Check with CTC once you see the hard copy if it shows any silver.

Tin should be 1 or 0.

Change oil,Full flow,change Bypass filter and take oil drain to 15,000, provided no problems with fuel delivery etc.

Now I feel better [Happy]

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#586104 - 12/16/02 05:52 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Terry Offline


Registered: 05/27/02
Posts: 3845
Loc: Greenville , Texas
So I'm inarticulate using kompuuter terms [Razz]

Patman still likes me [Canada]

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#586105 - 12/16/02 05:55 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Lightman Offline


Registered: 09/17/02
Posts: 150
Loc: Cleveland, OH
Thanks much terry for your reply. I sure hope those are 0s and not 9's...

Thanks for the explanation of the f-soot and solids difference. Both of these look pretty low compared to results I've seen on chipped cars, which I guess I attribute to the bypass filter...., kinda cancelling out the extra wear type effects the chip is giving. I'll check with CTC regarding the two numbers.

Dunno how this affects people's views, but I should note that my driving style is about 1000miles/week for work, 85mph highway driving 80% of the time....so this run of oil definitely didn't sit for any extended periods. Dunno if that means anything but thought i'd throw it out there! [Smile]

[ December 17, 2002, 05:12 AM: Message edited by: Patman ]

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#586106 - 12/16/02 06:13 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Terry Offline


Registered: 05/27/02
Posts: 3845
Loc: Greenville , Texas
[Off Topic!] No harm no foul, I'm used to being teased by my kids about my lack of 'puter PC savvy [LOL!] Skins thick like my head.

I just beat them because I can ! [Dummy!] Just kidding..... [Coffee]

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#586107 - 12/16/02 06:15 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Greg Offline


Registered: 07/20/02
Posts: 371
Loc: Port Colborne, ON
do you beat them with a plastic cup as shown in your post? [Coffee]

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#586108 - 12/16/02 06:16 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Terry Offline


Registered: 05/27/02
Posts: 3845
Loc: Greenville , Texas
Whatever I can reach.... quick. [Patriot]

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#586109 - 12/16/02 06:19 AM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Terry Offline


Registered: 05/27/02
Posts: 3845
Loc: Greenville , Texas
Both you boys stop, [crushedcar] and don't make me get the cup out!

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#586110 - 12/16/02 01:11 PM Re: Delvac 1 results in 2002 Jetta TDI(diesel)
Patman Offline



Registered: 05/27/02
Posts: 19718
Loc: Oakville, Ontario
quote:
Originally posted by Terry:
So I'm inarticulate using kompuuter terms [Razz]

Patman still likes me [Canada]

Yep! [Canada]

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