Chevy stipulates a 500-mile oil change as part of the break-in for all C7 Corvettes. I'm not sure what the factory fill is, but I think it's Mobil 1 5w30. The break-in procedure is to avoid excessive engine load, limit idling, and vary engine RPMs. The redline is reduced slightly to prevent you from driving too hard.
The car had 146 miles when I bought it, and the drive home was over 400, so I missed the 500-mile mark by a little bit.
The sample quantity also was not large enough to test viscosity -- just spectral analysis and TBN+TAN. Blackstone said they expect the elevated iron, copper, and silicon to drop as the engine continues to break-in. I sent this off just for fun and expected the elevated particulates.
Code:
OIL Mobil 1 5w30
MILES IN USE 741
MILES 741
SAMPLE TAKEN 4/12/2017
ALUMINUM 3
CHROMIUM 1
IRON 48
COPPER 28
LEAD 1
TIN 0
MOLYBDENUM 84
NICKEL 0
MANGANESE 2
SILVER 0
TITANIUM 0
POTASSIUM 10
BORON 106
SILICON 74
SODIUM 7
CALCIUM 1043
MAGNESIUM 624
PHOSPHORUS 692
ZINC 753
BARIUM 0
INSOLUBLES -
WATER 0
FLASHPOINT ºF SHORT
SUS VIS 210ºF -
cSt @ 212ºF SHORT
TBN 6.2
TAN 1.9
The car had 146 miles when I bought it, and the drive home was over 400, so I missed the 500-mile mark by a little bit.
The sample quantity also was not large enough to test viscosity -- just spectral analysis and TBN+TAN. Blackstone said they expect the elevated iron, copper, and silicon to drop as the engine continues to break-in. I sent this off just for fun and expected the elevated particulates.
Code:
OIL Mobil 1 5w30
MILES IN USE 741
MILES 741
SAMPLE TAKEN 4/12/2017
ALUMINUM 3
CHROMIUM 1
IRON 48
COPPER 28
LEAD 1
TIN 0
MOLYBDENUM 84
NICKEL 0
MANGANESE 2
SILVER 0
TITANIUM 0
POTASSIUM 10
BORON 106
SILICON 74
SODIUM 7
CALCIUM 1043
MAGNESIUM 624
PHOSPHORUS 692
ZINC 753
BARIUM 0
INSOLUBLES -
WATER 0
FLASHPOINT ºF SHORT
SUS VIS 210ºF -
cSt @ 212ºF SHORT
TBN 6.2
TAN 1.9