Executive Summary

The ANP survey helps choose a price reference. To turn it into a refueling decision, it's necessary to connect product, period, and region to the travel data. The average price alone does not describe the cost: vehicle consumption, distance, and refueled quantity also factor in.

This guide proposes a management routine for transport companies, shippers, and freelancers. It does not present station quotes, freight rates, or minimum floor calculations. The examples below are didactic hypotheses, not market data.

Context: what comparison makes sense

Start by identifying the fuel. Do not combine diesel S10 and S500 as if they were the same series. Then, note the researched week, scope, and unit. Comparing the national average of one week with a local purchase from another week may lead to an incorrect conclusion about cost increase.

The ANP page provides survey results with different breakdowns. Choose the breakdown you can maintain in future comparisons and save the consulted link. In the TRRC Observatory, the period appears alongside the value; the collection date only informs when the portal obtained the observation.

TRRC Analysis: separate price and efficiency

A useful way to investigate variations is to keep one premise constant at a time. First, compare the estimated cost with the usual consumption and two different prices. Then keep the price and vary the yield. This way, it's possible to discuss whether the difference is associated with the refueling reference or the operation, without attributing all change to diesel.

Hypothetical example: a trip of 600 km with a yield of 3 km/l requires an estimate of 200 liters. A hypothetical increase of R$ 0,20 per liter adds R$ 40 to the fuel under this premise. If the yield drops to 2,5 km/l, the same distance requires 240 liters. This does not demonstrate the cause of the yield drop; it only shows why it's worth checking load, route, and vehicle records before deciding.

The calculation is distance divided by yield, multiplied by the price. Toll, maintenance, remuneration, and other expenses are excluded from this result. Consult the dashboard and simulator to test your own premises.

In practice: action checklist

  • Record product, week, region, unit, and reference URL.
  • Separate planned distance and actual distance; document route deviations.
  • Use observed yield in comparable trips, avoiding confusing different vehicles and conditions.
  • Keep liters, value, and identification of refuelings in your internal routine.
  • Compare estimate and actual upon trip completion. Investigate differences before adjusting prices or goals.
  • Update the premise when a new observation is published, preserving the previous one for comparison.

How each reader can use

The transport company can discuss deviations by vehicle and type of operation, without turning a public average into an automatic target for the driver. The shipper can request clarity about the reference and period used in a proposal, avoiding comparing values with different premises. The freelancer can reserve the estimated trip cost and then confront it with their receipts.

Limits and points to confirm

The survey does not guarantee available price on a route. The simulator does not know your vehicle nor confirms the effective distance. Do not fill in absent weeks with a presumed number and do not interpret a recent collection as a real-time price. To organize other travel controls, use the process diagnosis.

Source

ANP — Fuel Price Survey. Source consulted on 22/09/2026. The organization method and hypothetical examples are TRRC explanations; they are not official ANP recommendations.