Diesel at £2 a Litre: Why Prices Are Rising in 2026, What It Means for Us and What We Can Do About It

Diesel has now passed £2 per litre, with the average price reaching 200.01p on the 2nd of October according to the RAC. Filling a typical 55-litre diesel car now costs around £110, almost £32 more than it did before the conflict with Iran began earlier this year. RAC – UK diesel price hits new record high of £2 a litre

Petrol is expensive too, at around £1.75 per litre, but the gap between the two fuels has become substantial. For those of us driving diesel cars, vans or motorhomes, the increase is obvious every time we visit a filling station, although the wider impact goes much further than the cost of filling our own tanks.

Diesel still keeps a large part of our economy moving. Lorries delivering food to supermarkets use it, as do delivery vans, agricultural machinery, coaches, construction equipment and countless business vehicles. When diesel becomes significantly more expensive, those additional costs gradually spread through the economy, so even people who never buy diesel directly can end up paying for some of the increase.

Why is diesel being hit so hard?

There isn’t one single reason for the increase. The conflict involving the US, Israel and Iran has disrupted oil production, shipping and refining across the Middle East, while the Strait of Hormuz remains particularly important because huge quantities of crude oil and refined fuels normally pass through it.

Even when oil is still available, moving it becomes more expensive and complicated during a conflict. Shipping costs increase, insurance becomes more expensive, tankers are diverted and refinery disruption reduces the supply of finished products. That matters because crude oil still has to be transported, refined and distributed before it becomes the diesel that reaches our local filling station.

Diesel is currently one of the refined products under the greatest pressure. Problems in the Middle East have combined with damage to Russian refineries to tighten the international diesel market, meaning there is less spare capacity available when something goes wrong elsewhere.

Ukraine has continued attacking Russian refineries and other energy infrastructure as part of its war with Russia. Russia was previously one of the world’s largest diesel exporters, but problems with domestic supply have also led it to restrict exports in an attempt to protect its own market.

We are effectively seeing two major conflicts putting pressure on the same fuel market at the same time.

We don’t produce enough diesel ourselves

This is probably one of the more important parts of the story from a preparedness point of view. We still have refineries in this country, but they don’t produce enough road diesel to meet the amount we use.

Government figures show that in 2024 British refineries produced enough diesel to meet only 54.9% of our road diesel demand. By comparison, they produced around a quarter more petrol than we consumed. GOV.UK – Statutory security of supply report 2025

That leaves us much more dependent on overseas supplies for diesel than for petrol. In 2024 we imported diesel from 28 different countries, so we aren’t dependent on a single supplier, although more than a third of those imports came from the United States, with the Netherlands and Belgium providing another substantial proportion.

That diversity gives us some protection against a problem affecting one country, but it doesn’t completely protect us when the international diesel market itself becomes tight. It also explains why events thousands of miles away can show up so quickly on the price board at our local filling station.

Could diesel actually become difficult to get?

At the moment, high prices are a much bigger problem than physically finding diesel. There aren’t widespread reports of filling stations around the country running dry, and the Government continues to describe our fuel supply as resilient.

There are also emergency arrangements sitting behind the normal commercial supply system. The UK has a National Emergency Plan for Fuel which can be activated during a serious disruption, allowing the Government to release emergency oil stocks, deploy reserve tanker capacity and change the way available fuel is distributed.

If conditions became much more serious, diesel could be prioritised for vehicles supporting important supply chains such as food and healthcare. Emergency and critical services could receive priority at designated filling stations, while limits could also be placed on how much fuel members of the public buy during each visit.

None of that means those measures are about to be introduced, but it does show how important diesel remains to the country and how seriously a sustained disruption would have to be managed.

The G7 has also agreed to release emergency oil and refined fuel stocks in response to the disruption, with diesel forming part of those releases. GOV.UK – G7 statement on global energy security and market stability

£2 diesel doesn’t stay at the filling station

For me, this is where the situation becomes more relevant to people who don’t drive a diesel vehicle. Almost everything we buy has travelled somewhere, and much of that journey still depends on diesel.

Take an ordinary supermarket product. It may travel from a farm or port to a processing facility, then on to a distribution centre before finally reaching the shop. Several of those journeys may involve diesel-powered HGVs, and those vehicles can consume hundreds of litres of fuel every week.

The Road Haulage Association has warned that the current increase is adding hundreds of pounds per week to the fuel bill of some trucks. Coach operators and other transport businesses are facing similar pressure, particularly where they can’t immediately increase prices because they are working under existing contracts.

Businesses can absorb increases for a while, but eventually those costs have to be passed on somewhere. We are already seeing signs of that wider pressure in the economy, with the latest ONS inflation figures showing transport and motor fuels making a significant contribution to rising household costs. ONS – Consumer price inflation

That means the effects can reach us through delivery charges, tradespeople, bus and coach services, supermarket prices and almost anything else that depends heavily on road transport.

Food prices could be hit from both directions

Food is probably where many of us will notice the secondary effects most clearly. Farmers need fuel to operate machinery, food processors use energy throughout production, and lorries then move products through warehouses and distribution centres before they reach supermarkets.

Higher diesel prices can therefore affect both the production and transport sides of the system. That comes at an awkward time after the difficult growing conditions we’ve already experienced this year.

I recently looked at the effects of drought, poor harvests and international supply problems in Could Britain Face Food Shortages? What the 2026 Harvest Means for Our Food Supply, and diesel prices add another cost into that same system.

I’m not expecting supermarkets to suddenly run out of food because diesel has reached £2 per litre. A more likely outcome is that higher transport and production costs continue to work their way through supply chains and gradually appear in the prices we pay.

That’s another reason I prefer keeping more than just a couple of days’ worth of food at home. My 7-day emergency food plan looks at building a larger supply gradually from food we’d normally buy anyway, rather than making a large purchase once prices are already climbing or shelves are becoming busier.

Buying some products in larger packs can also make sense where the unit price is better and we know we’ll use them. It gives us a little more resilience while also reducing the number of shopping trips we need to make.

How can we reduce the impact?

Most of us can’t do much about international oil markets, refinery outages or shipping through the Strait of Hormuz, but we can reduce how exposed we are to higher fuel prices and short-term disruption.

That doesn’t mean replacing a perfectly good car because diesel has reached £2 a litre. In many cases, the cost of changing vehicle would be far greater than the fuel savings. A more realistic approach is to look at how we use the transport we already have and where we have alternatives.

Combining journeys is probably one of the easiest changes. If we’re already driving to the supermarket, it may make sense to deal with several errands at the same time rather than making separate journeys throughout the week. Working from home where possible, sharing journeys and using public transport can also make a difference without requiring any major investment.

Keeping the fuel tank reasonably topped up gives us a little more flexibility as well. It reduces the need to find fuel immediately if filling stations become busy or local deliveries are delayed.

That doesn’t mean filling jerry cans or panic buying every time something happens overseas. For me, it simply means I’d rather have half a tank sitting outside than enough fuel for another 20 miles.

Electric cars have one fairly obvious advantage

Electric cars don’t solve every transport problem. They are still relatively expensive to buy, public charging can be costly and they replace dependence on petrol or diesel with dependence on electricity.

During an oil supply problem, however, they do have one significant advantage. They don’t need oil.

If you have off-street parking and a home charger, your driveway effectively becomes your filling station. A car sitting outside with 150 or 200 miles of usable range gives you a substantial amount of transport without needing to visit a forecourt.

Our public charging network has also grown considerably. Government statistics show that the number of public EV chargers has continued to increase, including rapid and ultra-rapid chargers intended for longer journeys. Department for Transport – EV charging infrastructure statistics

Electricity can fail too, of course, which is why I wouldn’t treat an EV as completely independent transport. I’ve written more about that in my power preparedness articles, because moving everything onto the electricity grid creates another point of dependence.

For households with solar panels and suitable equipment, though, the equation changes again because at least some of the energy needed for transport can potentially be generated at home.

That’s something petrol and diesel vehicles can’t easily replicate.

Petrol is another option

Petrol prices have risen as well, so switching from diesel to petrol isn’t a complete escape from high oil prices. It does, however, give us a different supply position.

As mentioned earlier, we currently produce more petrol domestically than we consume, while importing almost half the diesel we use. That doesn’t make petrol immune to disruption because crude oil, refineries, pipelines, tankers and filling stations still have to work, but it does mean the supply picture is different.

For anyone replacing a car anyway, that is one more factor worth thinking about alongside purchase price, insurance, reliability and fuel economy. Historically, diesel was often the obvious choice for people covering high mileages, but with diesel now considerably more expensive than petrol, that calculation isn’t as straightforward as it once was.

Our use of diesel cars has already been declining. Government energy statistics show that there were around two million fewer diesel cars on our roads in 2024 than there were in 2019, while demand for road diesel also fell over the same period.

What about an old diesel running on vegetable oil?

This is where things become more interesting. Some older diesel vehicles, particularly those with simple mechanical fuel-injection systems, have historically been run on vegetable oil or converted to use it.

There are still people running older Mercedes, Peugeots, Volkswagens and Land Rovers on various alternative diesel fuels, but this definitely isn’t a case of taking a modern diesel to the local chip shop and filling it with waste cooking oil.

Modern common-rail systems operate at extremely high pressures and have much tighter tolerances, while their emissions equipment is far more complex. Using the wrong fuel could produce a repair bill considerably larger than anything saved at the pump.

Waste vegetable oil also needs proper filtering and processing, and using alternative fuels on the road has tax implications. HMRC treats biodiesel and other qualifying fuel substitutes used as road fuel as taxable fuels. HMRC guidance on biofuels and road fuel

I wouldn’t buy a 30-year-old diesel purely because it might run on vegetable oil, but I can understand the preparedness appeal of simple machinery that can operate using more than one fuel.

The bicycle sitting in the garage might be more useful

For shorter journeys, there is a much simpler alternative. A bicycle doesn’t care whether diesel is £1.50, £2 or £3 per litre, and it doesn’t depend on whether the local filling station has had a delivery.

Cycling isn’t realistic for every journey or every person, especially where distance, disability, weather, road conditions or carrying children make a car more practical. Even so, a lot of the journeys we currently make by car are fairly short.

An electric bike makes that option more useful by reducing the effort needed on hills, increasing the practical distance we can cover and making it easier to carry shopping or other loads.

I’ve previously written more about this in The Electric Bicycle – Your Reliable Ride for UK Preparedness.

For anyone who already owns one, simply keeping it charged and maintained gives another transport option without needing to buy anything specifically for an emergency. A conventional bicycle provides the same basic resilience without relying on electricity at all.

For short supermarket trips in particular, panniers or a bicycle trailer can turn a bike into something considerably more useful than simple recreational transport.

Keep the car ready as well

Reducing how much we depend on the car doesn’t mean neglecting it. If anything, keeping the vehicle ready becomes more important when fuel prices are volatile or supplies are under pressure.

Keeping the tank reasonably full is one part of that, but basic maintenance matters as well. Correct tyre pressures improve fuel economy, while keeping on top of servicing reduces the chances of an avoidable breakdown when we actually need the vehicle.

It’s the same thinking behind the items I keep in the car during winter. You don’t need to assume you’re going to become stranded overnight to see the benefit of having a bit more margin available, and I’ve covered that in more detail in my UK winter car emergency kit.

If fuel prices continue rising, even relatively small improvements in fuel economy become more noticeable. Driving more smoothly, reducing unnecessary weight and avoiding repeated short journeys can all make a difference over time.

We don’t need to rely on one option

For most households, there probably isn’t one perfect answer.

A diesel vehicle might still make sense for somebody towing a caravan, running a van or travelling long distances every week. A petrol car may be better suited to somebody covering fewer miles, while an electric vehicle becomes particularly attractive for households that can charge cheaply at home.

A bicycle or e-bike might handle many local journeys without replacing the family car at all.

Public transport adds another option where services are available and practical.

The useful part is having some choice.

If every journey we make relies on one diesel vehicle, we’re completely exposed to the price and availability of diesel. If some journeys can be made using another car, public transport, a bicycle or simply on foot, our dependence is lower.

That flexibility becomes more valuable when something changes unexpectedly.

What happens next?

I don’t think we’re about to wake up tomorrow and find that diesel has disappeared from filling stations across the country. The more immediate concern is that prices remain high for a prolonged period and continue to increase costs for businesses that depend heavily on road transport.

Those costs don’t stay within the haulage or farming industries. They eventually feed through into delivery charges, services, supermarket prices and the wider cost of living.

If international supply problems worsen, the possibility of temporary local shortages or restrictions becomes more relevant as well. The emergency plans already in place show that this is something governments prepare for, even if those measures are never needed.

For households, the practical response is fairly straightforward. Keeping some fuel in the car, reducing unnecessary journeys, maintaining a bicycle or e-bike, considering petrol or electric options when we next replace a vehicle, and keeping a little more food at home all reduce our exposure.

None of those things requires us to assume the worst.

They simply mean that if diesel stays above £2, rises further or becomes temporarily harder to find, we have more than one way of dealing with it.