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Commercial fleet · heavy-duty-diesel-uoa

Heavy-Duty Diesel UOA

Combined soot, fuel, TBN, viscosity, Fe and coolant screen for heavy-duty equipment.

Where to use

Combined soot, fuel, TBN, viscosity, Fe and coolant screen for heavy-duty equipment.

Methodology

Normalizes submitted data, calculates derived indicators and applies transparent warning rules.

Standards context

ASTM D445 ASTM D5185 ASTM E2412 ASTM D2896 / D4739

Console version

HeavyDutyDieselUoa.exe input.csv output.json

CSV header: soot_pct,fuel_pct,tbn_retention,viscosity_deviation,iron_ppm,coolant_marker

Limitations

This screening result does not replace manufacturer requirements, an accredited laboratory report or engineering diagnostics. Limits must be configured for the engine, lubricant, method and asset history.