Operating context · oil-topup-fraction
Oil Top-up Fraction
Shows how much make-up oil may have refreshed additives and diluted accumulated contaminants.
Where to use
Before comparing TBN, wear metals and additives across drain intervals.
Methodology
Uses only submitted measurements and transparent deterministic formulas/rules. No model training or hidden ML logic is used.
Console version
OilTopupFraction.exe input.csv output.json
CSV header: topup_l,oil_fill_l
Limitations
The result is an engineering screen. Interpret it with the fresh-fluid baseline, laboratory method, OEM requirements and the asset-specific trend.