Fuel · 6 min read

The complete guide to fuel management

Fuel is one of the biggest costs a fleet has, and one of the easiest to lose without noticing. Here is how to see where it goes, and keep more of it.

YThe Yamme team28 Oct 2024
Trucks on the move: every one of them is burning fuel, every minute.
In this article
  1. 01Start by measuring
  2. 02Spot what does not add up
  3. 03Habits that cut fuel use
  4. 04Know what each vehicle costs you

For most fleets, fuel is the biggest running cost after salaries. It is also the easiest one to lose without noticing: a few litres at a time, spread across dozens of vehicles and hundreds of trips.

None of it shows up on a single receipt. That is why fuel problems survive for months, and why the fleets that control fuel best are simply the ones that can see it.

01Start by measuring

You cannot manage what you cannot see. The first step is a clear record of fuel for every vehicle: what went into the tank, what it cost, and how far the vehicle went on it.

Every refill tells part of the story. On its own it means little; across a month, it shows a pattern.
Every refill tells part of the story. On its own it means little; across a month, it shows a pattern.

Once fuel is on record, the questions become simple. Which vehicles use the most? Which routes? And does the fuel bought match the distance driven?

On the platformFuel managementSee refills, unusual drops and what fuel really costs you, per vehicle and for the whole fleet.yamme.iq

The fleets that control fuel best are not the ones that try hardest. They are the ones that can see it.

02Spot what does not add up

With a few weeks of records, three kinds of problem start to stand out. Each one is worth a question, and most have a simple answer.

A refill that looks too large
Fuel that disappears while parked
One vehicle that uses far more than its twins
A refill that looks too large

A refill that looks too large

When a refill is bigger than the tank should take, the receipt and the vehicle do not agree. Ask why.

Fuel that disappears while parked

Fuel that disappears while parked

Fuel should not drop while a vehicle is standing still. When it does, you want to know that night, not at the end of the month.

One vehicle that uses far more than its twins

One vehicle that uses far more than its twins

Two identical vehicles on similar routes should use similar fuel. A big gap usually points to a habit, a fault or a leak.

03Habits that cut fuel use

Most savings do not come from catching theft. They come from small habits, repeated every day, across every driver.

Every litre at the pump is paid for. The habits on the road decide how far it goes.
  • Cut idling at depots and stops
  • Keep speeds steady on open roads
  • Plan shorter routes between jobs
  • Service vehicles on time
  • Check tyre pressure every week
  • Review fuel every week, not every year
A well-serviced engine uses less fuel.
A well-serviced engine uses less fuel.
Smooth, steady driving goes further on every litre.
Smooth, steady driving goes further on every litre.

04Know what each vehicle costs you

Put a price on each refill and you can see the true running cost of every vehicle, every route and every month. That is when fuel stops being a guess and becomes a number you can manage.

From the platform: a refill, recorded the moment it happens.
On the road
01On the road
At the depot
02At the depot
On the highway
03On the highway
On site
04On site
At the pump
05At the pump
Further readingTelematics for fleets: a guide to efficient fleet managementHow fleet managers use vehicle data to cut fuel use and running costs.energy.gov
YWritten by the Yamme teamWe build fleet management software in Baghdad, and write about what we learn from fleets on the road.
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