Recent Topics
The next gen electric car?
by Volvohead
09/01/14 03:31 PM
Fram TG3506 Cut Open
by NMBurb02
09/01/14 03:30 PM
1998 Corolla Catalytic Converter Compatability
by 01_celica_gt
09/01/14 03:25 PM
Bosch Premium 3423 Cut Open (Money Shots Only)
by NMBurb02
09/01/14 03:05 PM
Ac issue on focus STILL!!
by ram_man
09/01/14 02:37 PM
snow tires for sale
by bdzik
09/01/14 02:30 PM
1995 Toyota Tercel DX, 260,000 kms.
by Speed_Racer
09/01/14 02:26 PM
Bosch Premium 3331 Cut Open
by NMBurb02
09/01/14 02:26 PM
Paint "bubbling"
by Joe_Power
09/01/14 01:44 PM
08 Lexus LS460 - QS 5W20 Ult. Durabilty - 6k miles
by Lexusguy
09/01/14 01:38 PM
Changing Smart phone plans - Which one??
by Joe_Power
09/01/14 01:33 PM
Honda mower oil question.....
by Clubber_Lang
09/01/14 01:24 PM
Newest Members
Lexusguy, atomb, snapple37, Speed_Racer, DennisWaller
51164 Registered Users
Who's Online
122 registered (01_celica_gt, 1foxracing, 147_Grain, 123Saab, 1345, 29662, 14 invisible), 2039 Guests and 205 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51164 Members
64 Forums
218640 Topics
3447478 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: 2936
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