Used oil analysis · tan-growth
TAN Growth
Shows acidity growth relative to fresh oil or baseline.
Where to use
Shows acidity growth relative to fresh oil or baseline.
Methodology
Normalizes submitted data, calculates derived indicators and applies transparent warning rules.
Standards context
Console version
TanGrowth.exe input.csv output.json
CSV header: used_tan,fresh_tan,warning_delta
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.