How to Pick Fuel-Efficient Trucks & Save Costs

Fuel costs are one of the most significant operational expenses in the trucking industry. Whether you're running long-haul logistics, construction transport, or regional freight, improving fuel efficiency can have a direct impact on your bottom line. 

In this guide, we explore why fuel efficiency matters, how it affects your operating costs, and how to choose the right vehicle to maximise savings, especially when investing in a quality used truck from PR Group.

Why Fuel Efficiency Matters in the Trucking Industry

Fuel represents up to 40% of total operating costs in commercial trucking. In South Africa, where diesel prices fluctuate frequently and distances are vast, choosing a fuel-efficient vehicle can significantly reduce long-term expenses. For fleet managers and independent owner operators alike, this makes fuel economy a top priority when purchasing or replacing a truck or trailer.

Environmental and Compliance Benefits

In addition to cost savings, fuel-efficient trucks emit less CO₂ and meet evolving emissions standards, making them better aligned with sustainability goals and future regulatory compliance.

How Fuel Consumption Affects Your Bottom Line

Let’s break down the real-world implications of fuel efficiency for South African operators:

Direct Savings Over Time

A truck that uses 1–2 litres less per 100 km can save thousands of rands annually. For example:

• A vehicle travelling 120,000 km/year with a 2L/100km improvement could save over R50,000 annually at R21/L diesel.
   

Fleet Efficiency at Scale

For logistics companies with a fleet of 10+ trucks, improving average fuel consumption across the fleet can lead to hundreds of thousands in annual savings.

What Makes a Truck Fuel Efficient?

1. Engine Technology

Modern trucks come with enhanced engine management systems that optimise fuel injection and reduce waste. Look for trucks with Euro 5 or Euro 6 compliance for better performance and lower emissions.

2. Aerodynamics

Trucks designed with wind deflectors, side skirts, and streamlined cabs face less drag, especially on highways, leading to lower fuel usage.

3. Transmission Type

Automated Manual Transmissions (AMTs) and modern 12-speed gearboxes often outperform traditional manual options when it comes to fuel economy.

4. Tyre Management Systems

Trucks equipped with tyre pressure monitoring systems (TPMS) and fuel-efficient tyres reduce rolling resistance and improve consumption.

How to Choose the Right Truck for Fuel Savings

When buying a used truck or trailer from PR Group, here’s how to ensure fuel efficiency is part of your decision-making process.

Match the Truck to the Load

A vehicle that is too powerful for your average load wastes fuel. Conversely, underpowered trucks overwork the engine. Match the engine power (kW) and torque to the typical freight you carry.

Consider the Route Types

Do you mostly do long-haul freeway trips or short urban deliveries? Trucks optimised for highway driving often include cruise control and aerodynamic enhancements, while city-oriented vehicles may offer idle reduction features.

Review the Service History

At PR Group, every used truck or trailer is quality checked before being listed. Trucks with complete service records often retain better fuel efficiency over time due to consistent maintenance.

Fuel-Efficient Trucks Available at PR Group

PR Group regularly stocks brands known for their fuel efficiency, including:

• Mercedes-Benz Actros – Known for its low fuel consumption and robust engine design.

• MAN TGS – A favourite in regional logistics for its cost efficiency and reliability.

• Volvo FH Series – Offers excellent aerodynamics and smart fuel-saving tech.

• Scania R Series – Delivers powerful performance with high efficiency across various applications.

???? View available used trucks

Each listing provides details such as engine specs, transmission type, and mileage to help buyers evaluate long-term running costs.

Tips to Maximise Fuel-Efficiency After Purchase

Once you've selected your truck, these practices help ensure you keep fuel costs down:

• Driver training: Teaching smooth gear changes, optimal RPM use, and reduced idling can cut fuel consumption by 5–10%.

• Scheduled maintenance: Regular oil changes, filter replacements, and tyre inspections are essential.

• Load optimisation: Avoid hauling unbalanced or partial loads that strain the vehicle.

• Telematics: Use onboard systems to monitor driving behaviour and fuel usage.
   

Invest Smart, Save Long Term

Choosing the right truck isn't just about upfront costs; it's about long-term operational efficiency. By focusing on fuel-efficient vehicles and buying from a reputable source like PR Group, you set your business up for better profitability and lower risk.

With a wide selection of quality assured used trucks and trailers, PR Group ensures that you don’t just buy a vehicle, you invest in dependable, cost-effective performance.

???? Contact PR Group today to learn more or browse our latest inventory.