Andrew WrightUK drivers are paying more at the pump in April 2026 than at any point since May 2024. Average petrol prices have surged to around 153–154 pence per litre, while diesel sits even higher at roughly 184p per litre — according to data from RAC Drive and Fuel Finder UK published in early April 2026. For the average motorist covering 10,000 miles per year, this rise translates to hundreds of pounds more per year in running costs.
Why are UK fuel prices rising so sharply?
The root cause is geopolitical. Crude oil prices have climbed above $112–116 per barrel following disruptions to Middle East supply chains, with Brent crude pushed higher by ongoing tensions involving Iran from late February 2026 onwards. When crude oil prices rise, fuel prices at UK forecourts typically follow within days.
The government's 5 pence per litre fuel duty cut — originally introduced in March 2022 — was extended until 31 August 2026 as announced in the Autumn Budget 2025. Without this freeze, according to GOV.UK, pump prices would have risen by an additional 5p per litre in March 2026. However, duty will increase in three steps from September 2026, with rates gradually returning to pre-2022 levels by March 2027.
In other words: the relief is temporary, and fuel costs are set to remain elevated through the rest of the year.
5 ways a mechanic can help you cut your car running costs
With fuel costs eating further into household budgets, the smartest thing many drivers can do is make sure their car is using the fuel it does burn as efficiently as possible. Here is where professional advice from a qualified mechanic pays off.
1. Check and replace your air filter
A blocked air filter reduces engine efficiency and can increase fuel consumption by up to 10%, according to motoring experts. Air filters should typically be replaced every 15,000–30,000 miles or every two years, whichever comes first. This is a quick, low-cost fix that a mechanic can complete in under 30 minutes.
2. Inspect tyre pressure and alignment
Under-inflated tyres increase rolling resistance, which means your engine works harder to maintain speed. The RAC estimates that correctly inflated tyres can improve fuel economy by up to 2%. Wheel misalignment compounds this — dragging the car sideways and accelerating tyre wear simultaneously. A mechanic can check both in a single workshop visit.
3. Review your engine oil grade
Using the wrong engine oil — particularly one that is too thick — increases internal friction and reduces efficiency. Your vehicle handbook specifies the recommended viscosity grade. At your next service, ask your mechanic to confirm you are using the correct specification for your engine and driving conditions in 2026.
4. Get your spark plugs checked
Worn spark plugs cause misfiring, which leads to incomplete fuel combustion and wasted petrol. Most modern cars require spark plug replacement every 30,000–60,000 miles. If your car has been running slightly rough or showing a marginal drop in power, this is worth investigating before higher fuel prices add up further.
5. Request a fuel system inspection if your consumption has risen unexpectedly
A sudden or gradual increase in fuel consumption that cannot be explained by driving habits alone is sometimes a symptom of an underlying fault — a stuck injector, faulty oxygen sensor or exhaust issue. A diagnostic check from a qualified mechanic can identify these faults early. Ignoring them does not just cost more at the pump: it can accelerate engine wear and lead to more expensive repairs down the line.
How to find cheaper fuel near you
Beyond car maintenance, there are practical steps to reduce what you pay per litre. PetrolPrices.co.uk and the RAC Fuel Watch tool both provide real-time price comparisons by postcode, updated daily. Supermarket forecourts (Asda, Morrisons, Tesco, Sainsbury's) consistently price below brand name stations by 2–5p per litre. Using a loyalty card at these sites adds further savings.
Planning ahead also matters: avoid filling up on motorways where prices remain among the highest in the country, and fill at quieter times (early morning, midweek) when prices tend to be slightly lower.
When rising fuel costs signal a wider financial problem
For small businesses — particularly tradespeople, delivery drivers and taxi operators — the current fuel price environment has real implications for profitability. If fuel costs represent a significant share of your operating expenses, it is worth reviewing your pricing structure, factoring in expected fuel duty increases from September 2026, and possibly speaking to a financial adviser about fuel hedging options or business cost planning.
For private motorists already stretched by rising energy bills and mortgage costs, a qualified financial adviser can help identify where household budgets can be rebalanced — whether that means reviewing insurance, switching energy tariffs, or planning the transition to a hybrid or electric vehicle at the right financial moment.
High fuel prices are, in a sense, a prompt: now is a good time to audit what your car is actually costing you each month and whether professional advice — from a mechanic or a financial planner — could make a measurable difference. For more on the UK fuel situation, see our earlier coverage: UK Fuel Hits 152p: How to Protect Your Budget.
Disclaimer: Fuel prices quoted are averages based on data published by RAC Drive and Fuel Finder UK in early April 2026 and may vary by region and forecourt.
