Recent Topics
M1 HM or PHM
by car51
04/30/16 05:18 PM
Rotella T6 5W40, 8,000 mi, '09 Cobalt SS 2.0T
by GermanAutohaus
04/30/16 04:37 PM
Accord / Jetta Saturday Detail {PICS}
by gregk24
04/30/16 04:22 PM
MOTUL 8100 X-Cess 5W40, 8,014 mi, '04 Audi A4 1.8T
by GermanAutohaus
04/30/16 04:00 PM
Free Riding Mower Needs a Carb
by Delta
04/30/16 03:41 PM
Rate my lawn plugs
by JHZR2
04/30/16 03:38 PM
Rotella T6 5W40, 14,000 mi, '13 Audi A6 3.0l TFSI
by GermanAutohaus
04/30/16 03:24 PM
#915 over FK1000P?
by Phishin
04/30/16 03:04 PM
Rotella T6 5W40, 6,480 mi, 2015 Ford Explorer 3.5l
by GermanAutohaus
04/30/16 02:46 PM
Rotella T6 5W40, 7,600 mi, 2011 Audi A5 2.0T TFSI
by GermanAutohaus
04/30/16 02:38 PM
Rotella T6 5W40, 8,500 mi, 2004 Ram 5.9l Cummins
by GermanAutohaus
04/30/16 02:22 PM
Rotella T6 5W40, 8,000 mi, 2012 Jeep 3.6L V6
by GermanAutohaus
04/30/16 02:02 PM
Newest Members
paydase, Scopx, speedysmitty, hdwizard21, raihan
57751 Registered Users
Who's Online
60 registered (69GTX, bepperb, avacado11, AirgunSavant, 901Memphis, Bandito440, 4 invisible), 1817 Guests and 326 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
57751 Members
66 Forums
248265 Topics
4059550 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3326652 - 03/28/14 07:14 PM 1997 Ford 7.3L 177k 4800mi Sample
Wicked94Z Offline


Registered: 03/18/14
Posts: 9
Loc: Washington (WA)
Ok first post here, but I'm a longtime lurker.

I've put 20k miles on this truck, unknown previous lifetime. I have done two UOAs on this truck. Both are listed, with comments from the lab. This oil is still in service, first time I've used the fumoto valve which was nice. No makeup oil added, it's about 1 qt down.

Two changes ago, I put new injectors in with new orings. Curious if that would affect the silicon levels? How much longer does everyone think I should run this oil?

Thanks!

_________________________
1997 F350 CCLB-7.3L E4OD Delo XLE 10w30

Top
#3326827 - 03/28/14 10:18 PM Re: 1997 Ford 7.3L 177k 4800mi Sample [Re: Wicked94Z]
LargeCarManX2 Offline


Registered: 09/23/06
Posts: 2279
Loc: Up here in the NorthWest
Hey....Welcome!

So you have 4,800 on the oil or 20K?

I would check the air filter and change as needed, is it stock?

These engines like to run a quart down, so I would keep it that way.

If you put an average of 10 to 12 k PER year on the engine, I would do a once a year oil change with all filters....i.e. fuel, oil, air, and call it good.
_________________________
"Success is the ability to go from one failure to another with no loss of enthusiasm."
Sir Winston Churchill

Top
#3326829 - 03/28/14 10:19 PM Re: 1997 Ford 7.3L 177k 4800mi Sample [Re: Wicked94Z]
Donald Online   content


Registered: 03/21/04
Posts: 16643
Loc: Upstate NY
If your looking to see how long an oil can run, you need TBN. The oxidation and nitration numbers do not look correct. Those numbers are not zero with a VOA. So you found the air intake leak since silicon is down?
_________________________
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2001 Jeep Grand Cherokee Laredo 4.0- 4-sale
1999 Dodge Ram 2500 w/Cummins- 4-sale


Top
#3329053 - 03/31/14 11:38 AM Re: 1997 Ford 7.3L 177k 4800mi Sample [Re: Wicked94Z]
Wicked94Z Offline


Registered: 03/18/14
Posts: 9
Loc: Washington (WA)
Thanks for the replies. I have 4800mi on this oil, and it is still in service. The silicon numbers are UP, sorry the numbers on top are this change, the bottom are from 16k ago which was the initial analysis I did on this truck.

Sodium numbers came down, the lab was worried before about a possible coolant leak. I inspected the injector cups, and have kept a very close eye on coolant levels with no changes. I think it must have been residual from before I aquired the truck.

I have a K&N air intake on the truck that came with it. I did clean and re-oil the filter about 12k ago, but it appears that the silicon numbers don't lie. I drained about 5 sec out of the fumoto before taking my sample, so I don't believe contamination occured at the time of sampling. I'll have to measure, but maybe the popular 6637 filter will directly replace the possibly poor filtering k&n. Thoughts?
_________________________
1997 F350 CCLB-7.3L E4OD Delo XLE 10w30

Top
#3330518 - 04/01/14 04:09 PM Re: 1997 Ford 7.3L 177k 4800mi Sample [Re: Wicked94Z]
sdan27 Offline


Registered: 06/07/09
Posts: 484
Loc: Michigan
Yeah, get rid of that KN air filter. I had one in mine for awhile but didn't like it. Seemed like kind of a mickey mouse set up the way you had to apply grease all around it just to get it to seal. Do the 6637 open air element and you'll like it a lot better except then you'll have to get an aftermarket downpipe to help all the extra air flow back out of the engine.
_________________________
'94 F250 Powerstroke. LF9691 primary oil. AH1141 air filter. FS1282, FF5320 fuel filter. WF2071 coolant filter.

Top
#3332915 - 04/04/14 12:51 AM Re: 1997 Ford 7.3L 177k 4800mi Sample [Re: Wicked94Z]
BituminousCoal Offline


Registered: 04/11/12
Posts: 50
Loc: New York
From a guy who loves the 7.3 engines, please, get rid of the K&N filter. These trucks are prone to dusting as it is, and even more people who run the K&N's have experienced it.

I'd recommend disassembling the intake air setup, installing a quality paper filter, clean everything, and apply something like curil-T to all seals and hose connections if you want to have good compression for years to come.

Top