How to save money on fuel without wasting a journey

Waiting until the tank is nearly empty removes choice. Check prices when you still have enough range to use a forecourt on your normal route, near work or close to a planned shop. That turns comparison into a routine rather than a special journey.

Use cheapest petrol near me or cheapest diesel near me for a true radius around the point you choose. Town pages are better when you want to browse all forecourts assigned to one place.

Multiply the price difference in pence by the litres you expect to buy, then divide by 100. A 4p/l gap on 40 litres is £1.60. On 55 litres it is £2.20. That is the gross pump saving before the detour.

Use the amount you will really buy, not the full manufacturer tank capacity by habit. If you are topping up 20 litres, the same 4p/l gap is worth only 80p.

A longer trip uses fuel and time. The cheapest forecourt can still be the wrong choice when it sends you well away from your route. Compare the saving with the extra return mileage, and remember that straight-line distance is not road distance.

A useful rule is to prefer the cheapest suitable forecourt already on, or very close to, a planned journey. Make a separate trip only when the price gap and amount you need to buy clearly justify it.

The best saving strategy is usually boring in a good way: compare locally, avoid expensive convenience stops, and make efficient choices repeatedly. One dramatic detour matters less than a sensible forecourt you can use every week.

• Keep tyres at the vehicle manufacturer’s recommended pressure.
• Remove unnecessary weight and roof equipment when it is not being used.
• Accelerate and brake smoothly, and anticipate traffic so speed changes are smaller.
• Combine errands where practical, because repeated cold starts and short trips can be inefficient.
• Check that a loyalty reward is worth more than a lower cash price elsewhere.