Previous UOA here. 125133 miles on the engine at the time of sampling.
2x 2-day track events on this oil (NJMP Thunderbolt, intermediate pace, street tires); one event at the beginning of the OCI, and one at the end.
Aluminum is back down to previous levels and all other wear markers remain low, though fuel remains high.
In the pic, fuel dilution in a previous sample is blanked out because it turned out not to be reliable.
Wear Metals
Iron - 8
Chromium - 0
Nickel - 0
Aluminum - 4
Copper - 2
Lead - 0
Tin - 1
Cadmium - 0
Silver - 0
Vanadium - 0
Particle Quantifier (PQ) Index - 11
Contaminant Metals
Silicon - 5
Sodium - 6
Potassium - 1
Multi-Source Metals
Titanium - 0
Molybdenum - 70
Antimony - 0
Manganese - 0
Lithium - 1
Boron - 56
Additive Metals
Magnesium - 25
Calcium - 2744
Barium - 0
Phosphorus - 937
Zinc - 1006
Other Contaminants
Fuel Dilution - 2.4% (GC)
Soot - Water -
Fluid Properties
Viscosity @ 100º C - 18.2 cSt
TBN - 5.24
Oxidation - 13
Nitration - 12
2x 2-day track events on this oil (NJMP Thunderbolt, intermediate pace, street tires); one event at the beginning of the OCI, and one at the end.
Aluminum is back down to previous levels and all other wear markers remain low, though fuel remains high.
In the pic, fuel dilution in a previous sample is blanked out because it turned out not to be reliable.
Wear Metals
Iron - 8
Chromium - 0
Nickel - 0
Aluminum - 4
Copper - 2
Lead - 0
Tin - 1
Cadmium - 0
Silver - 0
Vanadium - 0
Particle Quantifier (PQ) Index - 11
Contaminant Metals
Silicon - 5
Sodium - 6
Potassium - 1
Multi-Source Metals
Titanium - 0
Molybdenum - 70
Antimony - 0
Manganese - 0
Lithium - 1
Boron - 56
Additive Metals
Magnesium - 25
Calcium - 2744
Barium - 0
Phosphorus - 937
Zinc - 1006
Other Contaminants
Fuel Dilution - 2.4% (GC)
Soot - Water -
Fluid Properties
Viscosity @ 100º C - 18.2 cSt
TBN - 5.24
Oxidation - 13
Nitration - 12