Only real difference in performance between this and the Castrol seems to be the viscosity.
Code:
OIL M10w40FS Cast0w40
MILES IN USE 4.8k 5k
MILES 64.5k 55k
SAMPLE TAKEN 2/4/17 6/11/16
ALUMINUM 3 2
CHROMIUM 1 1
IRON 15 17
COPPER 2 1
LEAD 0 0
TIN 0 1
MOLYBDENUM 72 3
NICKEL 0 0
MANGANESE 0 0
SILVER 0 1
TITANIUM 1 45
POTASSIUM 1 0
BORON 174 2
SILICON 10 11
SODIUM 3 1
CALCIUM 2820 1869
MAGNESIUM 23 565
PHOSPHORUS 856 867
ZINC 932 1075
BARIUM 0 0
INSOLUBLES 0.2 0.2
WATER 0 0
FLASHPOINT ºF 405 400
SUS VIS 210ºF 62.9 71.2
cSt @ 212ºF 11.04 13.26
Code:
OIL M10w40FS Cast0w40
MILES IN USE 4.8k 5k
MILES 64.5k 55k
SAMPLE TAKEN 2/4/17 6/11/16
ALUMINUM 3 2
CHROMIUM 1 1
IRON 15 17
COPPER 2 1
LEAD 0 0
TIN 0 1
MOLYBDENUM 72 3
NICKEL 0 0
MANGANESE 0 0
SILVER 0 1
TITANIUM 1 45
POTASSIUM 1 0
BORON 174 2
SILICON 10 11
SODIUM 3 1
CALCIUM 2820 1869
MAGNESIUM 23 565
PHOSPHORUS 856 867
ZINC 932 1075
BARIUM 0 0
INSOLUBLES 0.2 0.2
WATER 0 0
FLASHPOINT ºF 405 400
SUS VIS 210ºF 62.9 71.2
cSt @ 212ºF 11.04 13.26