Recent Topics
Turn compressor pressure switch down?
by sciphi
05/27/15 10:33 AM
2008 Mecury Milan AWD (V6), 1st time oil change
by MrNobody
05/27/15 10:15 AM
ATV GEAR OIL
by OtisBlkR1
05/27/15 09:24 AM
Six top FIFA officials arrested for corruption
by gfh77665
05/27/15 08:55 AM
Want an 899 panigale so bad!
by donnyj08
05/27/15 08:37 AM
Regular Pennzoil...and sludge?
by mrdctaylor
05/27/15 08:33 AM
Full Synthetic or Synthetic Blend ???
by fins
05/27/15 08:16 AM
Will Ester based Pennzoil syn TCW3 attract water?
by SOHCman
05/27/15 07:45 AM
Motorcraft 5w30 semi synthetic replacement
by bluegillz
05/27/15 07:38 AM
UV Tire Protectant
by Miller88
05/27/15 07:25 AM
Small Engine Selection
by racer12306
05/27/15 07:13 AM
HD engine, economy and wear 5W30 vs 0W20
by Shannow
05/27/15 07:10 AM
Newest Members
LRs281, David45, bluegillz, MIDO, RLenox
54123 Registered Users
Who's Online
92 registered (anl0109, aquariuscsm, 2010_FX4, Astro14, ag_ghost, Andrei, 12 invisible), 2098 Guests and 150 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
54123 Members
66 Forums
231928 Topics
3717810 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#103705 - 10/04/04 04:51 AM source of potassium and sodium in used oil.
kickster Offline


Registered: 05/23/04
Posts: 300
Loc: toronto
AMSOIL XL7500 UOA showed high level of Potassium (4) and Sodium (11) but no trace of antifreeze was found!

Blackstone thinks it came from oil additive but no oil or gas additive was used. they also think Sodium/Potassium may be the result of high bearing wear! Lead (15) copper (13)

What do you guys think?

some info on UOA
Amsoil XL7500 10500 miles on oil
Al 7 Average 4
Iron 86 Ave 15
copper 13 Ave 8
lead 15 ave 3
potassium 4 ave 0
Silicon 9 Ave 10
Sodium 11 ave 5
Vis 61.1 (59-65)
Flashpoint 380 (>370)
Fuel <0.5
Antifreeze 0
Insolubles 0.4

Top
#103706 - 10/04/04 05:21 AM Re: source of potassium and sodium in used oil.
JohnnyG Offline


Registered: 01/01/03
Posts: 323
Loc: Ohio
How about from the fuel itself?

Top
#103707 - 10/04/04 10:15 AM Re: source of potassium and sodium in used oil.
olympic Offline


Registered: 05/23/04
Posts: 694
Loc: Saskatchewan, Canada
My UOA's always show some sodium(not tested for potassium) and I'm confident that I don't have a coolant leak. If the numbers start trending up then that would be cause for concern.

Top
#103708 - 10/04/04 11:35 AM Re: source of potassium and sodium in used oil.
Silverado Offline


Registered: 10/30/03
Posts: 127
Loc: Bakersfield, California U.S.A.
I have had a trend in sodium from 5 to 10 to 15 in my last 3 UOA's which has puzzled me as well. Some other members pointed it out to me, yet I'm not sure what to make of it. I will find out pretty soon with the help of Terry Dyson's services, as I plan on chaging my oil next week.

Top
#103709 - 10/04/04 05:11 PM Re: source of potassium and sodium in used oil.
dickwells Offline


Registered: 06/12/02
Posts: 901
Loc: Northern Illinois
My 02 Silverado 4.3 showed sodium quite a while then the analysis company switched it to Potassium and back to sodium, they can't seem to properly differentiate them. At any rate I checked the MSDS for Dexcool and it showed a potassium compound. I had the Intake gasket changed and sure enough it was broken and leaking in at least one spot, though very slowly. I have not got my next analysis yet, just went over 3k miles on that change.

Top
#103710 - 10/05/04 09:28 AM Re: source of potassium and sodium in used oil.
MNgopher Offline


Registered: 09/17/02
Posts: 3187
Loc: Lakeville, MN
Sodium may also be caused by Road Salt usage in the wintertime. Contamination may come from either ingestion (through the air intake or other vacuum leak) or sample contamination (salt around the drain plug, etc...). I tend to notice a slight bump in sodium values over winter intervals as a result.

Top