This oil was run from 11/11/09 until 04/19/10. It was 5W-30 PP with a Napa Gold oil filter. My last UOA looked good enough that I decided to run the oil longer this time. I went about 3000 miles past the point where my dummy light for my OLM went off. It does not show a % for my car.
I drive pretty gentle most of the time.
Wix air filter. Air filter changed at 110k & 120k miles on the odo. I'm changing it every 10k now.
Blackstone Coments:
Lead, from the bearings, increased in the latest sample from your Grand Prix. This could be due to the longer oil run, or a temporary particle streak running through the bearings. If it's a particle streak, lead should improve in the next sample. We suggest taking no action on this other than resampling in 10,000 miles to monitor. If lead comes back looking good next time we'll suggest going longer then. The TBN read 3.1 so you still had some active additive left. No harmful contaminants were found. Run 10,000 miles again to monitor lead.
Comments welcome. I've got PP 10W/30 in it now with a Wix oil filter and plan to run it 6 months until fall. My goal is to just change the oil every 6 months which could be up to 11k miles per OCI. Lead is up a bit but still lower than the M1 OCI's of the past, we'll see how it does the next time. It couild be from the winter where it runs cooler. I sometimes see condensation in the oil filler tube when it is really cold. 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.
Code:
OIL PP 5W30 PP10W30 PP10W30 PYB10W30 PP5W30 M110W30 M110W30
MILES IN USE 9.8k 7.4k 5.0k 3.4k 5.1k 5.7k 4.9k Uni Avg
MILES 127.2k 117.5k 110k 87.1k 80.5k 70.4k 64.8k
SAMPLE TAKEN 4/19/10 11/11/09 6/20/09 6/10/08 2/28/08 9/2/07 7/3/06
ALUMINUM 3 3 2 2 3 3 2 3
CHROMIUM 1 1 1 1 1 1 1 1
IRON 12 9 8 9 24 14 8 13
COPPER 24 25 19 21 28 39 30 17
LEAD 15 8 5 9 4 21 19 8
TIN 3 0 0 2 1 0 0 1
MOLYBDENUM 54 49 48 3 52 98 83 65
NICKEL 1 0 0 0 1 0 0 0
MANGANESE 0 0 0 0 0 0 0 0
SILVER 0 0 0 0 0 0 0 0
TITANIUM 0 0 0 0 0 0 0 0
POTASSIUM 3 0 2 7 11 1 3 7
BORON 33 29 36 114 34 47 52 45
SILICON 12 15 11 29 13 12 12 11
SODIUM 2 2 2 8 10 5 4 24
CALCIUM 3020 2809 2944 2018 2919 2184 2354 2078
MAGNESIUM 10 10 10 7 12 11 13 90
PHOSPHORUS 725 649 639 646 656 538 589 691
ZINC 907 728 832 784 819 675 745 848
BARIUM 0 0 0 0 0 0 0 0
INSOLUBLES 0.3 0.3 0.3 0.2 0.3 0.3 0.3
WATER 0 0 0 0 0 0 0
FLASHPOINT ºF 390 390 410 400 400 410 420
SUS VIS 210ºF 57.1 58.2 59.2 56.6 57.9 58.6 60.8
cSt @ 100ºC 9.40 9.70 9.99 9.24 9.63 9.83 10.44
TBN 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. Air filter changed at 110k & 120k miles on the odo. I'm changing it every 10k now.
Blackstone Coments:
Lead, from the bearings, increased in the latest sample from your Grand Prix. This could be due to the longer oil run, or a temporary particle streak running through the bearings. If it's a particle streak, lead should improve in the next sample. We suggest taking no action on this other than resampling in 10,000 miles to monitor. If lead comes back looking good next time we'll suggest going longer then. The TBN read 3.1 so you still had some active additive left. No harmful contaminants were found. Run 10,000 miles again to monitor lead.
Comments welcome. I've got PP 10W/30 in it now with a Wix oil filter and plan to run it 6 months until fall. My goal is to just change the oil every 6 months which could be up to 11k miles per OCI. Lead is up a bit but still lower than the M1 OCI's of the past, we'll see how it does the next time. It couild be from the winter where it runs cooler. I sometimes see condensation in the oil filler tube when it is really cold. 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.
Code:
OIL PP 5W30 PP10W30 PP10W30 PYB10W30 PP5W30 M110W30 M110W30
MILES IN USE 9.8k 7.4k 5.0k 3.4k 5.1k 5.7k 4.9k Uni Avg
MILES 127.2k 117.5k 110k 87.1k 80.5k 70.4k 64.8k
SAMPLE TAKEN 4/19/10 11/11/09 6/20/09 6/10/08 2/28/08 9/2/07 7/3/06
ALUMINUM 3 3 2 2 3 3 2 3
CHROMIUM 1 1 1 1 1 1 1 1
IRON 12 9 8 9 24 14 8 13
COPPER 24 25 19 21 28 39 30 17
LEAD 15 8 5 9 4 21 19 8
TIN 3 0 0 2 1 0 0 1
MOLYBDENUM 54 49 48 3 52 98 83 65
NICKEL 1 0 0 0 1 0 0 0
MANGANESE 0 0 0 0 0 0 0 0
SILVER 0 0 0 0 0 0 0 0
TITANIUM 0 0 0 0 0 0 0 0
POTASSIUM 3 0 2 7 11 1 3 7
BORON 33 29 36 114 34 47 52 45
SILICON 12 15 11 29 13 12 12 11
SODIUM 2 2 2 8 10 5 4 24
CALCIUM 3020 2809 2944 2018 2919 2184 2354 2078
MAGNESIUM 10 10 10 7 12 11 13 90
PHOSPHORUS 725 649 639 646 656 538 589 691
ZINC 907 728 832 784 819 675 745 848
BARIUM 0 0 0 0 0 0 0 0
INSOLUBLES 0.3 0.3 0.3 0.2 0.3 0.3 0.3
WATER 0 0 0 0 0 0 0
FLASHPOINT ºF 390 390 410 400 400 410 420
SUS VIS 210ºF 57.1 58.2 59.2 56.6 57.9 58.6 60.8
cSt @ 100ºC 9.40 9.70 9.99 9.24 9.63 9.83 10.44
TBN 3.1 3.4 n/a n/a 3.9 3.7 n/a