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.
How It Shows Up
- DEF may appear on receipts, transaction exports, quarterly reports or state recordkeeping instructions.
- It normally supports fuel records, but mileage records still have to come from another source.
- The field should be checked before quarter end, when missing data is harder to reconstruct.
Example
A carrier using def should confirm that reports show dates, gallons, jurisdiction and unit data clearly enough to reconcile against mileage records.
Common Mix-Up
Fuel card data can support IFTA work, but it does not replace all IFTA records or state record retention rules.
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.
Questions to Ask
- Which report includes def?
- Can the data be exported by quarter and unit?
- Are original receipts or images retained in the portal?
Related Fuel Card Profiles
WEX Fleet Card
WEX offers fleet fuel cards and related account tools for fuel purchasing, reporting, tax workflows and spend control. Public WEX pages describe mobile apps, reporting and control features, but current public fee schedules may vary by product and should be verified directly.
Fleet One EDGE Card
Fleet One positions the EDGE Card for smaller fleets and connects it to EFS fleet payment infrastructure. Public pages mention mobile solutions and separate fuel tax reporting services, but current card-level fees should be checked with Fleet One.
RTS Fuel Card
RTS offers multiple fuel card options, including Fleet One, self-funded and larger fleet programs. The official page describes app-based route planning, discount search, spending limits and Card Lock security, plus IFTA Plus integration on a separate RTS page.