Went ahead and changed the oil & filter at 25K, even though things still look pretty good. The universal averages from Blackstone are 6600 for this motor, so I feel pretty good with the mileage. Probably will not be extending any further at this point.
Make/Model: Isuzu 6.6 Duramax LLY
Vehicle: 2004 Chevy 2500HD
Code:
OIL AME 15w40 AME 15w40 AME 15w40 AME 15w40 AME 15w40 VPBE 5w40 VPBE 5w40
MILES IN USE 24,757 21,779 19,779 12,006 9,006 8,038 6,000
MILES ON UNIT 147,981 145,003 123,224 115,451 112,451 102,862 100,824
SAMPLE TAKEN 8/9/13 6/13/13 6/13/12 3/1/12 1/2/12 9/6/11 8/26/11
MAKE UP OIL 0 2.5 2.5 0 0 0 0
ALUMINUM 3 2 2 2 2 2 1
CHROMIUM 1 0 1 0 0 0 0
IRON 17 14 16 11 9 7 6
COPPER 6 3 4 2 2 3 2
LEAD 3 2 2 1 2 6 1
TIN 0 0 1 0 2 0 0
MOLYBDENUM 2 0 6 7 8 42 43
NICKEL 1 0 1 0 1 0 0
MANGANESE 0 0 0 0 0 0 0
SILVER 0 0 0 0 0 0 0
TITANIUM 0 0 0 0 0 0 0
POTASSIUM 0 4 4 0 0 0 0
BORON 5 2 10 9 10 34 40
SILICON 8 9 8 7 7 8 7
SODIUM 6 5 6 5 5 6 7
CALCIUM 4140 3888 3604 3153 3334 820 849
MAGNESIUM 33 31 197 213 234 1190 1319
PHOSPHORUS 1401 1252 1262 1132 1241 1071 1191
ZINC 1474 1500 1323 1226 1369 1300 1417
BARIUM 0 0 0 0 0 0 0
CADMIUM 0
VANADIUM 0
ANTIMONY 0
LITHIUM 0
SUS @ 210F 73.2 74.6 73.0 71.3 71.7 71.9
Visc @ 100C 13.8 14.6 14.14 13.73 13.29 13.40 13.44
Flashpoint 430 430 425 435 400 420
Fuel %
Antifreeze % 0.0 0.0 0.0 0.0 0.0 0.0
Water % 0.0
Insolubles % 0.3 0.3 0.2 0.2 0.1 0.2
TBN 4.5 7.0 5.8 8.7
Soot
Oxidation 53
Nitration 10
Oil Analysis Vendor Comments:
There's really nothing to complain about here. This is a fantastic sample. You're getting average metal readings even though you're running the oil about four times as long. That's impressive. If we had to complain about one thing, it'd be copper, since it increased just a little -- and has been increasing for the past few samples. It's still well below average, but we'll watch it. It could show some brass/bronze wear. Really, though, if our only complaint is a 2 ppm increase in copper, then you know you've got it good. The TBN is still good. Bring on 26,000 to 27,000 miles.
22K sample was done through Oil Analyzers Inc, everything else is through Blackstone.
Make/Model: Isuzu 6.6 Duramax LLY
Vehicle: 2004 Chevy 2500HD
Code:
OIL AME 15w40 AME 15w40 AME 15w40 AME 15w40 AME 15w40 VPBE 5w40 VPBE 5w40
MILES IN USE 24,757 21,779 19,779 12,006 9,006 8,038 6,000
MILES ON UNIT 147,981 145,003 123,224 115,451 112,451 102,862 100,824
SAMPLE TAKEN 8/9/13 6/13/13 6/13/12 3/1/12 1/2/12 9/6/11 8/26/11
MAKE UP OIL 0 2.5 2.5 0 0 0 0
ALUMINUM 3 2 2 2 2 2 1
CHROMIUM 1 0 1 0 0 0 0
IRON 17 14 16 11 9 7 6
COPPER 6 3 4 2 2 3 2
LEAD 3 2 2 1 2 6 1
TIN 0 0 1 0 2 0 0
MOLYBDENUM 2 0 6 7 8 42 43
NICKEL 1 0 1 0 1 0 0
MANGANESE 0 0 0 0 0 0 0
SILVER 0 0 0 0 0 0 0
TITANIUM 0 0 0 0 0 0 0
POTASSIUM 0 4 4 0 0 0 0
BORON 5 2 10 9 10 34 40
SILICON 8 9 8 7 7 8 7
SODIUM 6 5 6 5 5 6 7
CALCIUM 4140 3888 3604 3153 3334 820 849
MAGNESIUM 33 31 197 213 234 1190 1319
PHOSPHORUS 1401 1252 1262 1132 1241 1071 1191
ZINC 1474 1500 1323 1226 1369 1300 1417
BARIUM 0 0 0 0 0 0 0
CADMIUM 0
VANADIUM 0
ANTIMONY 0
LITHIUM 0
SUS @ 210F 73.2 74.6 73.0 71.3 71.7 71.9
Visc @ 100C 13.8 14.6 14.14 13.73 13.29 13.40 13.44
Flashpoint 430 430 425 435 400 420
Fuel %
Antifreeze % 0.0 0.0 0.0 0.0 0.0 0.0
Water % 0.0
Insolubles % 0.3 0.3 0.2 0.2 0.1 0.2
TBN 4.5 7.0 5.8 8.7
Soot
Oxidation 53
Nitration 10
Oil Analysis Vendor Comments:
There's really nothing to complain about here. This is a fantastic sample. You're getting average metal readings even though you're running the oil about four times as long. That's impressive. If we had to complain about one thing, it'd be copper, since it increased just a little -- and has been increasing for the past few samples. It's still well below average, but we'll watch it. It could show some brass/bronze wear. Really, though, if our only complaint is a 2 ppm increase in copper, then you know you've got it good. The TBN is still good. Bring on 26,000 to 27,000 miles.
22K sample was done through Oil Analyzers Inc, everything else is through Blackstone.