Guides
Fuel saving guides
Plain, practical answers to the questions that decide what you pay for fuel. No jargon, no fluff, just what actually saves money.
Guide . 6 min readIs premium fuel worth it?Shell V Power, BP Ultimate and Esso Supreme cost several pence a litre more than ordinary petrol. For most cars that money buys you almost nothing. Here is when it is genuinely worth it.Read the guideGuide . 5 min readIs supermarket fuel bad for your car?The idea that supermarket petrol is lower quality or harmful is one of motoring's most repeated myths. Here is what is actually in the tanker, and the small grain of truth behind the story.Read the guideGuide . 6 min readHow to use less fuelMost fuel saving tips are either tiny or nonsense. Here are the handful that genuinely cut what you spend, in rough order of how much they save, ending with the biggest lever of all.Read the guideGuide . 5 min readCan you mix E5 and E10 petrol?Topping up E10 with a tank of E5 super unleaded, or the other way round, is fine for almost every car. Here is the exception that matters and how to know if it is you.Read the guideGuide . 6 min readThe best time to buy petrol and dieselThere is no magic cheapest day of the week. The real savings come from where you fill up and from timing a rise, not from choosing a Monday over a Friday.Read the guideGuide . 6 min readE10 vs E5 petrol: which should you use?E10 is the standard green pump and the cheaper choice for almost every modern car. Here is when the pricier E5 super unleaded is worth it, and when it is just marketing.Read the guideGuide . 7 min readWhat it really costs to drive 100 milesThe honest fuel and charging maths for petrol, diesel and electric in 2026, including the catch that decides whether an electric car is cheap to run or dearer than petrol.Read the guideGuide . 6 min readFuel duty in 2026 and 2027The 5p cut holds until the end of 2026, then unwinds in two steps through early 2027. Here is what that adds to a litre, what it means per tank, and how to soften the blow.Read the guideGuide . 5 min readWhy supermarket fuel is cheaperSupermarkets sell fuel at a wafer thin margin to get you through the doors. Usually that makes them the cheapest forecourt in town, but not always, and the exceptions are worth knowing.Read the guide