Texas Refinery Corp. Pro-Spec III 15w40 CI4+. The N14 puts out roughly 500hp and is installed in a John Deere self propelled chopper. This unit runs wide open most of the time at maximum load. Sump capacity is 42 quarts, 3 quarts of make up oil added. Analysis by Wearcheck, values of zero were omitted.
Time on unit: 4223 hrs
Time on oil & filter: 150 hrs
Oil not changed, sample pulled with vacuum pump.
Silicon: 2.6
Potassium: 2.8
Sodium: 5.2
Fuel%: Glycol: Negative
Water%: Soot%: 0.9
Sulfation: 61
Nitration: 67
Boron: 5.8
Barium: 0.5
Calcium: 4076
Magnesium: 14
Molybdenum: 5.2
Phosphorus: 1130
Sulfur: 5490
Zinc: 1281
Iron: 13
Copper: 0.4
Aluminum: 1.7
Lead: 6
Viscosity @ 100C: 15.49
TBN: 15.1
Time on unit: 4223 hrs
Time on oil & filter: 150 hrs
Oil not changed, sample pulled with vacuum pump.
Silicon: 2.6
Potassium: 2.8
Sodium: 5.2
Fuel%: Glycol: Negative
Water%: Soot%: 0.9
Sulfation: 61
Nitration: 67
Boron: 5.8
Barium: 0.5
Calcium: 4076
Magnesium: 14
Molybdenum: 5.2
Phosphorus: 1130
Sulfur: 5490
Zinc: 1281
Iron: 13
Copper: 0.4
Aluminum: 1.7
Lead: 6
Viscosity @ 100C: 15.49
TBN: 15.1