The first comments are from my oil change in December. The second #'s are from the current assay.
DAVID: This oil was in use 14,800 miles and has not been changed since the engine was new. Given those conditions, we are not surprised that wear read like it did. The engine is breaking in still, so the metals and silicon should decrease with future oil changes. Potassium and sodium are probably factory leftovers. You might want to do a short-run oil (3000 miles) to get these abrasive elements out of the block. The TBN read 2.3, showing some (not a lot) active additive remaining. We'd use fewer miles next oil change. We can't tell you exactly what kind of oil this is.
12/17/03 4/24/04
14,800 miles; 25,400 miles
42 iron 17
9 aluminum 5
1 chromium 1
11 copper 3
12 lead 5
6 tin 1
0 moly 2
1 nickel 0
20 manganese 5
0 silver 0
0 titanium 0
15 potassium 4
70 boron 115
46 silicon 14
16 sodium 5
3211 calcium 2974
222 magnesium 230
921 phosphorus 963
1077 zinc 1114
4 barium 1
flashpoint 375F (n > 365) 395
INSOLUBLES %0.4 %0.5
WATER %0.0 %0.0
ANTIFREEZE %0.0 %0.0
FUEL %0.5 %0.5
VISCOSITY 59.3 SUS @ 212F (54-61) 58.4
TBN for both samples were 2.5
Blackstones comments:
David: Nice improvements. You've run this oil longer than we would have recommended for a fairly new engine, and wear still looks good. We think you'll probably find another improvement next sample--or this might be as good as it gets as long as you're running the oil 10,000 miles. The TBN read 2.5, so the oil didn't contain a lot of active additive, but still had enought to get the job done in your Saab. We can't tell you who, exactly, makes this oil. This is a very common additive package used by several oil manufacturers. It's doing a good job in your engine, though.
Some of my comments:
I changed this when the computer told me to. The oil didn't last as long as the first run with 14,800 miles on the factory fill. These miles were 90%+ highway. I did about 11,000 miles in 3 months where the first sample was 15,000 miles in about 6 months.
It seems these are two different oils?? Am I correct? I know this last sample was the Saab 0W 30 oil but obviously not exactly sure what the facotry fill was. Why can't Blackstone tell exactly what brand of oil this is?
[ May 05, 2004, 11:49 AM: Message edited by: CosmicFlash ]
DAVID: This oil was in use 14,800 miles and has not been changed since the engine was new. Given those conditions, we are not surprised that wear read like it did. The engine is breaking in still, so the metals and silicon should decrease with future oil changes. Potassium and sodium are probably factory leftovers. You might want to do a short-run oil (3000 miles) to get these abrasive elements out of the block. The TBN read 2.3, showing some (not a lot) active additive remaining. We'd use fewer miles next oil change. We can't tell you exactly what kind of oil this is.
12/17/03 4/24/04
14,800 miles; 25,400 miles
42 iron 17
9 aluminum 5
1 chromium 1
11 copper 3
12 lead 5
6 tin 1
0 moly 2
1 nickel 0
20 manganese 5
0 silver 0
0 titanium 0
15 potassium 4
70 boron 115
46 silicon 14
16 sodium 5
3211 calcium 2974
222 magnesium 230
921 phosphorus 963
1077 zinc 1114
4 barium 1
flashpoint 375F (n > 365) 395
INSOLUBLES %0.4 %0.5
WATER %0.0 %0.0
ANTIFREEZE %0.0 %0.0
FUEL %0.5 %0.5
VISCOSITY 59.3 SUS @ 212F (54-61) 58.4
TBN for both samples were 2.5
Blackstones comments:
David: Nice improvements. You've run this oil longer than we would have recommended for a fairly new engine, and wear still looks good. We think you'll probably find another improvement next sample--or this might be as good as it gets as long as you're running the oil 10,000 miles. The TBN read 2.5, so the oil didn't contain a lot of active additive, but still had enought to get the job done in your Saab. We can't tell you who, exactly, makes this oil. This is a very common additive package used by several oil manufacturers. It's doing a good job in your engine, though.
Some of my comments:
I changed this when the computer told me to. The oil didn't last as long as the first run with 14,800 miles on the factory fill. These miles were 90%+ highway. I did about 11,000 miles in 3 months where the first sample was 15,000 miles in about 6 months.
It seems these are two different oils?? Am I correct? I know this last sample was the Saab 0W 30 oil but obviously not exactly sure what the facotry fill was. Why can't Blackstone tell exactly what brand of oil this is?
[ May 05, 2004, 11:49 AM: Message edited by: CosmicFlash ]
