A Guide to Being Fuel Efficient in a Motorhome

Environmental issues are a global concern and there is a general awareness that humanity can’t continue as it has been doing for the last 100 years. The UK government is currently working towards a stated 2035 cut-off point for the sale of new vehicles which use petrol or diesel for power. It’s important to note that already existing vehicles which use traditional fuels will still be allowed to be on the road and bought and sold on the pre-owned market.

The public and media discourse mostly focuses on what 2035 means for car owners, but 2035 will also impact leisure vehicle owners. As it is, motorhomes offer a more convenient and comfortable way to travel though they’re often presumed to be inefficient fuel guzzlers. We live in an age when sustainability and the rising cost of fuel have led some new motorhome owners to look for ways to be as fuel-efficient as possible – and, in this special edition of our blog, we’ll look into this whole topic.

Several key things influence the fuel consumption of motorhomes. Knowing what these are can help potential buyers make the right choice and can also assist current owners in improving their fuel efficiency.

• Distance and route planning: It’s obvious, but the distance you travel in your motorhome will significantly affect the amount of fuel it consumes. Long trips lead to increased fuel usage – though the efficiency can vary depending on the route you take. Hilly terrain or frequent stops can cause a motorhome to consume more fuel compared to a flat, open highway. Plan routes to avoid heavy traffic areas, steep climbs and unnecessary detours and you will improve fuel efficiency.
• Speed: This is a critical factor in fuel consumption. Most motorhomes have an optimal speed range for fuel efficiency, and this is typically between 50-65 mph. Going over this speed can lead to increased wind resistance, which in turn requires more power and fuel to keep speed. Maintaining a steady speed and using cruise control on the motorway can help maintain efficiency.
• Weight and load: The weight of a motorhome also influences fuel consumption. Heavier vehicles take more power to move, which means higher fuel usage. When you’re thinking about the weight of your motorhome it’s important to consider the weight of the vehicle itself – and also any cargo being carried (cases, bikes, outdoor gear etc). Reducing unnecessary items and opting to take lightweight alternatives instead can help with this particular issue.
• Engine type and size: A vital role in fuel efficiency is played by the engine – its type and size. Diesel engines generally provide better fuel economy than petrol engines, especially for larger vehicles. They tend to offer more torque, which can improve performance and efficiency. Additionally, modern engines with advanced technology (such as turbocharging and variable valve timing) can optimise fuel use.
• Aerodynamics: The design of a motorhome can influence its fuel efficiency. Models with a more aerodynamic shape will experience less wind resistance, which contributes to lower fuel consumption. External additions and accessories (e.g. roof racks) can create additional drag, so it’s a smart move to remove these when they’re not in use.
• Tyres and maintenance: Doing proper maintenance is crucial for maintaining fuel efficiency. This includes tyres, as when they’re under-inflated they increase rolling resistance, another thing that leads to higher fuel consumption. Regularly checking tyre pressure and making sure it’s what it should be (as well as ensuring they’re properly aligned) can contribute significantly to fuel efficiency. Engine maintenance, including oil changes and air filter replacements, also ensures motorhomes run efficiently.

While all of the factors mentioned in the previous section are largely beyond the control of motorhome owners (or their influence over them is minimal), there are several practical steps which can be taken to reduce fuel consumption and go some way to answering the question ‘what are the most fuel efficient motorhomes?’.

• Choose the right motorhome: When considering the purchase of a motorhome, opting for models that are specifically designed for fuel efficiency can make a substantial difference. Lightweight models with smaller engines and advanced technology will enhance efficiency. Obviously, your choice will also be heavily influenced by your travelling needs (solo, couple, family etc), but with the right advice you will be able to find the sweet spot.
• Drive sensibly: Adopting a more fuel-efficient driving style can dramatically reduce fuel consumption. Accelerate smoothly as rapid acceleration and braking hard will consume more fuel. Gradual acceleration and deceleration can improve fuel efficiency. You should also avoid idling – in other words, if you anticipate being stationary for more than a minute it’s more efficient to switch off the engine.
• Internal conditions: You should limit your use of motorhome air conditioning: Using it can increase fuel consumption, particularly when you’re travelling at lower speeds. If you’re driving on the motorway, consider using the ventilation system instead.
• Maintenance: Regular maintenance is very important for a motorhome’s fuel efficiency. Keeping the vehicle in its best possible condition not only prolongs its life but also makes sure it works efficiently. Scheduled servicing by a professional will identify potential issues before they escalate and become big problems, and small fixes can have a significant impact on fuel consumption.
• Planning: When you’re embarking on a trip, plan your route if you can so that you can optimise fuel use. Travelling during off-peak hours will help you avoid heavy traffic and reduce the time that your motorhome spends spent idling. Use sat nav to identify the quickest route to avoid roadworks or traffic delays.
• Reduce weight: As mentioned in the previous section, weight is a major factor in fuel consumption for motorhomes. Before you set off, take some time to work out what is necessary for your trip and remove any non-essential items. In other words, don’t over pack! Consider using storage solutions that help manage weight distribution.
• Fuel efficient accessories: Invest in fuel-efficient accessories. Fuel additives designed to improve combustion can help enhance efficiency and good quality engine oil can reduce friction and improve performance. Aerodynamic improvements (e.g. wind deflectors) can also reduce drag and improve fuel economy.

Ahead of the planned big switch for new vehicles in 2035, the pursuit of fuel efficiency in already existing motorhomes is a responsible and intelligent step. It involves being aware of, and understanding, the various factors that influence fuel consumption and taking proactive steps to mitigate these effects.

Whether you’re a seasoned traveller or someone who is completely new to the motorhome lifestyle, taking fuel consumption seriously can lead to more enjoyable and cost-effective time on the road. Check out the amazing motorhomes in stock at Go European and plan your adventures!