DEF
Diesel exhaust fluid, a separate product often purchased alongside diesel but tracked separately in reports.
Why It Matters
DEF affects fuel records, tax support or quarter-end reconciliation. Bad source data can create cleanup work later.
What to Check
- Confirm which fields related to def appear on receipts, statements or exports.
- Keep fuel records separate from mileage records and reconcile both before filing.
- Check the base jurisdiction or provider instructions for record retention rules.