Sorry about the formatting issue here as I tried but no luck.
Blackstone's Comments.
DAVID: This makes two good reports for your Saab. The longer oil run yielded higher iron, which is normal
since that metal tracks most directly with time on the oil. The other metals stayed about as steady as you
could hope for. The only questionable aspect is sodium. Mobil 1 doesn't use it as additive. It can show a little
coolant, but this much still isn't enough to say for sure since no potassium showed up. Watch your coolant
level just to be safe. The TBN was 2.0 showing active additive left. Try 14,000 miles on the next oil as long
as you're not losing coolant.
Code:
Oil M1 0W40 M1 0W40
Miles in use 10,400 12,100
Miles 34,800 46,900
Sample Taken 11/07/11 4-20-11
aluminum 4 4
chromium 1 1
iron 38 42
copper 6 4
lead 1 0
tin 0 0
moly 59 63
nickel 0 0
manganese 2 1
silver 0 0
titanium 2 4
potassium 0 0
boron 85 85
silicon 12 10
sodium 26 46
calcium 2725 2888
magnesium 21 31
phosphorus 784 832
zinc 766 871
barium 0 0
SUS Visc 65.1 65.3
cSt Visc 11.65 11.68
flashpoint 360 415
fuel .8 antifreeze ? ?
water 0.0 0
insolubles 0.4 .3
TBN 3.1 2.0
Blackstone's comments on first assay.
DAVID: This first sample from your Saab V-6 Turbo looks great. Averages show what normal wear should look like after ~2,500 miles on the oil. You ran your oil a lot longer, yet metals are all within the average range. That's an excellent indication your engine is in great shape. The sodium that turned up is probably oil additive from a past oil, though it could also show coolant so we put a ? in the antifreeze category. We doubt any problems exist since wear is so low, though. Fuel is fine at 0.8% and the TBN of 3.1 shows active additive left (1.0 is low). Try 12,000 miles next."
So what is up with my sodium levels?
Blackstone's Comments.
DAVID: This makes two good reports for your Saab. The longer oil run yielded higher iron, which is normal
since that metal tracks most directly with time on the oil. The other metals stayed about as steady as you
could hope for. The only questionable aspect is sodium. Mobil 1 doesn't use it as additive. It can show a little
coolant, but this much still isn't enough to say for sure since no potassium showed up. Watch your coolant
level just to be safe. The TBN was 2.0 showing active additive left. Try 14,000 miles on the next oil as long
as you're not losing coolant.
Code:
Oil M1 0W40 M1 0W40
Miles in use 10,400 12,100
Miles 34,800 46,900
Sample Taken 11/07/11 4-20-11
aluminum 4 4
chromium 1 1
iron 38 42
copper 6 4
lead 1 0
tin 0 0
moly 59 63
nickel 0 0
manganese 2 1
silver 0 0
titanium 2 4
potassium 0 0
boron 85 85
silicon 12 10
sodium 26 46
calcium 2725 2888
magnesium 21 31
phosphorus 784 832
zinc 766 871
barium 0 0
SUS Visc 65.1 65.3
cSt Visc 11.65 11.68
flashpoint 360 415
fuel .8 antifreeze ? ?
water 0.0 0
insolubles 0.4 .3
TBN 3.1 2.0
Blackstone's comments on first assay.
DAVID: This first sample from your Saab V-6 Turbo looks great. Averages show what normal wear should look like after ~2,500 miles on the oil. You ran your oil a lot longer, yet metals are all within the average range. That's an excellent indication your engine is in great shape. The sodium that turned up is probably oil additive from a past oil, though it could also show coolant so we put a ? in the antifreeze category. We doubt any problems exist since wear is so low, though. Fuel is fine at 0.8% and the TBN of 3.1 shows active additive left (1.0 is low). Try 12,000 miles next."
So what is up with my sodium levels?
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