This oil was run from 11/15/12 until 3/14/13. It was 5W-30 PP with a Mobil 1 oil filter. My last UOA was over 2 years ago and since that time I have been changing the oil every 4 months which generally works out to about 7500 miles and nearly the same time my oil change light goes off. This time I drove a bit more than usual which might be my new normal, the light went off 2 weeks before I changed it. It does not show a % for my car.
I drive pretty gentle most of the time.
Wix air filter gets changed every 10k miles.
Blackstone Coments:
Quote:
Lead has improved nicely in this sample. It's still a bit higher than average, but some of this is probably left over from the last oil. You can't ever get all the old oil out with one oil change. If you stay at 8,000-9,000 miles again next time lead might improve a little, but it likely won't get down to average as long as you're running extended oil changes. And that's okay. If lead doesn't bother you where it is, then you can stick with this oil run. If it does bother you then you might drop back to 7,500 miles and see what that gets you. No fuel/coolant found; other wear is low.
I find it a bit funny reading the Blackstone comments. It is as if the person commenting doesn't realize that I didn't do a UOA for over 2 years and nearly 57k miles. It is written as if this UOA and oil change was immediately after the last UOA. Oh well. Still no sign of a return of the intake gasket coolant leak that was repaired in the spring of '08. Hopefully it is gone for good. This was the main reason I did a UOA, just to see if it was leaking at all. Lead is a touch high, but not bad. I don't think I'm going to worry about it, I'll probably keep on doing what I'm doing. 10W-30 PP for the March-July and July-Nov intervals and 5W-30 PP for the Nov-Mar interval.
Code:
OIL PP 5W30 PP 10W30 PP 5W30 PP10W30 PP10W30 PYB10W30 PP5W30 M110W30 M110W30
MILES IN USE 8.2k 11.8k 9.8k 7.4k 5.0k 3.4k 5.1k 5.7k 4.9k Uni Avg
MILES 195.7k 139.0k 127.2k 117.5k 110k 87.1k 80.5k 70.4k 64.8k
SAMPLE TAKEN 3/14/13 10/15/10 4/19/10 11/11/09 6/20/09 6/10/08 2/28/08 9/2/07 7/3/06
ALUMINUM 4 4 3 3 2 2 3 3 2 3
CHROMIUM 1 1 1 1 1 1 1 1 1 1
IRON 11 13 12 9 8 9 24 14 8 13
COPPER 16 27 24 25 19 21 28 39 30 17
LEAD 15 38 15 8 5 9 4 21 19 8
TIN 0 0 3 0 0 2 1 0 0 1
MOLYBDENUM 55 53 54 49 48 3 52 98 83 65
NICKEL 0 1 1 0 0 0 1 0 0 0
MANGANESE 0 0 0 0 0 0 0 0 0 0
SILVER 0 0 0 0 0 0 0 0 0 0
TITANIUM 0 0 0 0 0 0 0 0 0 0
POTASSIUM 6 2 3 0 2 7 11 1 3 7
BORON 2 29 33 29 36 114 34 47 52 45
SILICON 11 11 12 15 11 29 13 12 12 11
SODIUM 4 1 2 2 2 8 10 5 4 24
CALCIUM 2549 3020 3020 2809 2944 2018 2919 2184 2354 2078
MAGNESIUM 10 13 10 10 10 7 12 11 13 90
PHOSPHORUS 699 676 725 649 639 646 656 538 589 691
ZINC 853 776 907 728 832 784 819 675 745 848
BARIUM 0 0 0 0 0 0 0 0 0 0
INSOLUBLES 0.4 0.4 0.3 0.3 0.3 0.2 0.3 0.3 0.3
WATER 0 0 0 0 0 0 0 0 0
FLASHPOINT ºF 400 400 390 390 410 400 400 410 420
SUS VIS 210ºF 60.1 60.9 57.1 58.2 59.2 56.6 57.9 58.6 60.8
cSt @ 100ºC 10.26 10.46 9.40 9.70 9.99 9.24 9.63 9.83 10.44
TBN n/a 4.6 3.1 3.4 n/a n/a 3.9 3.7 n/a
I drive pretty gentle most of the time.
Wix air filter gets changed every 10k miles.
Blackstone Coments:
Quote:
Lead has improved nicely in this sample. It's still a bit higher than average, but some of this is probably left over from the last oil. You can't ever get all the old oil out with one oil change. If you stay at 8,000-9,000 miles again next time lead might improve a little, but it likely won't get down to average as long as you're running extended oil changes. And that's okay. If lead doesn't bother you where it is, then you can stick with this oil run. If it does bother you then you might drop back to 7,500 miles and see what that gets you. No fuel/coolant found; other wear is low.
I find it a bit funny reading the Blackstone comments. It is as if the person commenting doesn't realize that I didn't do a UOA for over 2 years and nearly 57k miles. It is written as if this UOA and oil change was immediately after the last UOA. Oh well. Still no sign of a return of the intake gasket coolant leak that was repaired in the spring of '08. Hopefully it is gone for good. This was the main reason I did a UOA, just to see if it was leaking at all. Lead is a touch high, but not bad. I don't think I'm going to worry about it, I'll probably keep on doing what I'm doing. 10W-30 PP for the March-July and July-Nov intervals and 5W-30 PP for the Nov-Mar interval.
Code:
OIL PP 5W30 PP 10W30 PP 5W30 PP10W30 PP10W30 PYB10W30 PP5W30 M110W30 M110W30
MILES IN USE 8.2k 11.8k 9.8k 7.4k 5.0k 3.4k 5.1k 5.7k 4.9k Uni Avg
MILES 195.7k 139.0k 127.2k 117.5k 110k 87.1k 80.5k 70.4k 64.8k
SAMPLE TAKEN 3/14/13 10/15/10 4/19/10 11/11/09 6/20/09 6/10/08 2/28/08 9/2/07 7/3/06
ALUMINUM 4 4 3 3 2 2 3 3 2 3
CHROMIUM 1 1 1 1 1 1 1 1 1 1
IRON 11 13 12 9 8 9 24 14 8 13
COPPER 16 27 24 25 19 21 28 39 30 17
LEAD 15 38 15 8 5 9 4 21 19 8
TIN 0 0 3 0 0 2 1 0 0 1
MOLYBDENUM 55 53 54 49 48 3 52 98 83 65
NICKEL 0 1 1 0 0 0 1 0 0 0
MANGANESE 0 0 0 0 0 0 0 0 0 0
SILVER 0 0 0 0 0 0 0 0 0 0
TITANIUM 0 0 0 0 0 0 0 0 0 0
POTASSIUM 6 2 3 0 2 7 11 1 3 7
BORON 2 29 33 29 36 114 34 47 52 45
SILICON 11 11 12 15 11 29 13 12 12 11
SODIUM 4 1 2 2 2 8 10 5 4 24
CALCIUM 2549 3020 3020 2809 2944 2018 2919 2184 2354 2078
MAGNESIUM 10 13 10 10 10 7 12 11 13 90
PHOSPHORUS 699 676 725 649 639 646 656 538 589 691
ZINC 853 776 907 728 832 784 819 675 745 848
BARIUM 0 0 0 0 0 0 0 0 0 0
INSOLUBLES 0.4 0.4 0.3 0.3 0.3 0.2 0.3 0.3 0.3
WATER 0 0 0 0 0 0 0 0 0
FLASHPOINT ºF 400 400 390 390 410 400 400 410 420
SUS VIS 210ºF 60.1 60.9 57.1 58.2 59.2 56.6 57.9 58.6 60.8
cSt @ 100ºC 10.26 10.46 9.40 9.70 9.99 9.24 9.63 9.83 10.44
TBN n/a 4.6 3.1 3.4 n/a n/a 3.9 3.7 n/a