Reviewing Fuel Card Anomalies

Anomalies in your fuel card spending can indicate operational issues, driver behavior changes, or data entry errors. Learning to spot and investigate these anomalies helps you maintain cost control and fleet health.

What Is an Anomaly?

An anomaly is any fuel transaction or pattern that falls outside your fleet's normal range:

• Price anomalies: Cost per gallon significantly higher or lower than average
• Volume anomalies: Transaction size much larger or smaller than typical
• Frequency anomalies: Unusual number of stops in a given period
• Location anomalies: Fueling at unexpected networks or geographic areas
• Timing anomalies: Fueling at unusual times of day or days of week

Common Anomaly Types

1. High-Price Transactions

What to look for: Cost per gallon 20% higher than your contracted rates.

Causes:

• Emergency fueling during high-price periods
• Fueling at non-contracted networks
• Billing errors
• Fuel theft

How to investigate: Check truck location, fuel level data, and driver notes for the transaction date.

2. Large-Volume Purchases

What to look for: Gallons purchased significantly exceed truck tank capacity.

Causes:

• Jerry cans or fuel containers for equipment
• Multiple trucks fueled under one card
• Data entry errors

How to investigate: Verify against vehicle fuel tank specifications and cross-reference with mileage records.

3. Frequent Small Fills

What to look for: Multiple fuel stops within short time periods or distances.

Causes:

• Low fuel economy signals (engine problems)
• Driver overfueling habit
• GPS/odometer errors
• Card payment failures being retried

How to investigate: Check maintenance history and recent repairs; review driver communication logs.

4. Geographic Anomalies

What to look for: Fueling in unexpected locations or markets.

Causes:

• Route deviations (load delivered early/late)
• Driver error in network selection
• Lost/stolen fuel card usage

How to investigate: Cross-reference with load delivery records and GPS tracking data.

How to Use the Anomalies Dashboard

The Anomalies view in your Fuel Cards dashboard highlights suspicious transactions:

1. Filter by type: View only price, volume, frequency, or location anomalies
2. Review details: Click any transaction to see full details and context
3. Mark as reviewed: Indicate that you've investigated the anomaly
4. Add notes: Document your findings for future reference
5. Flag for follow-up: Escalate serious issues to management or compliance

Investigation Workflow

Step 1: Gather Context

• Check truck location at transaction time (GPS)
• Review fuel level before and after
• Look at mileage and fuel economy
• Check maintenance records from that period

Step 2: Cross-Reference

• Verify against load delivery records
• Check driver communication logs
• Review contract pricing for that network
• Confirm truck assignment for that date

Step 3: Determine Root Cause

Operational: Route deviations, emergency stops, equipment needs Behavioral: Driver preference, efficiency concerns Technical: Sensor errors, calculation mistakes, data entry errors Fraud: Card misuse, unauthorized purchases

Step 4: Take Action

• If operational: Update route planning or driver training
• If behavioral: Discuss with driver or fleet manager
• If technical: Correct data or escalate for system debugging
• If fraud: Escalate to security team immediately

Prevention Tips

1. Set alert thresholds: Configure price and volume limits that trigger notifications
2. Monitor trends: Review weekly anomaly reports to catch patterns early
3. Driver training: Educate drivers about efficient fueling practices
4. Regular audits: Conduct monthly reviews of all fuel transactions
5. Update contracts: Keep contracted rates current to spot pricing anomalies faster

When to Escalate

Contact support immediately if you find:

• Repeated large-volume anomalies
• Fueling at unauthorized networks
• Suspected card fraud or misuse
• Data that doesn't match your records
• Patterns suggesting vehicle maintenance issues