How much fuel is typically lost to internal fraud?

Industry studies place leakage in an illustrative 1% to 5% range of spend; the data signature shows up in monthly reconciliation.

Does per-transaction control require fleet telematics?

Not as a starting point: a payment instrument with per-fill records and per-card limits catches most leaks without extra hardware.

Fuel control: how to stop leakage in your fleet

Rodrigo Vázquez — Mexican Tax Specialist (SAT, CFDI)

Published: 7/20/2026 • Last reviewed: 7/20/2026 • 7 min read

Where a Mexican fleet's fuel leaks — ghost fill-ups, third-party tanks, station collusion — and the per-transaction control system that catches them early.

Summary

The four classic fuel leaks in a Mexican fleet — ghost fill-ups, third-party tanks, station collusion and inflated logbooks — leave signatures in the data: fills above tank capacity, falling efficiency, station concentration. The three-layer control system: a payment instrument that records everything (wallet with automatic CFDI), preventive per-card rules and monthly exception analytics.