Asda caps petrol at 159.7p and diesel at 189.7p across its forecourts

Asda has set maximum prices for fuel at its supermarket forecourts, capping unleaded petrol at 159.7p a litre and diesel at 189.7p across all of its Superstore stations (Asda, 12 November). The cut is an average of 4p a litre and takes effect from 5pm on Thursday 12 November. On a 55-litre family car, the supermarket says drivers save up to £2.20 per fill-up in the run up to Christmas.

That is not a headline-grabbing number. The bigger move is the cap itself. A cut of 4p drifts through and gets forgotten within days. A maximum price is a commitment: whatever happens to oil, the pump at an Asda Superstore will not charge more than 159.7p for petrol or 189.7p for diesel (Forecourt Trader, 13 November).

Who is actually paying the cap

The distinction matters because Asda runs two kinds of forecourt, and only one of them is in this deal. The cut applies to the filling stations attached to its large stores, the Superstores, around 320 of which sit across the country (Asda). Asda's Express sites, the smaller forecourts that are not tied to a supermarket, are excluded from both the cut and the cap.

Forecourt Trader puts the figure at 321 forecourts in scope, which is close enough to the 320 Asda itself gives that neither is wrong: the estate is roughly 320 stations, and the exact count wobbles by a unit depending on how you count the sites. The practical point is unchanged. If the station has a full Asda supermarket behind it, the cap applies. If it is an Express forecourt with a smaller shop or no shop at all, it does not.

That exclusion is already showing up in the price data. At Queensferry in Flintshire, Deeside's fuel tracker showed the Superstore forecourt at 159.7p on Friday morning, right at the cap, while the Asda Express sites nearby were showing 166.9p to 171.9p (Deeside.com, 13 November). The gap between the two kinds of Asda forecourt in one county is 12.2p a litre, or £6.71 on a 55-litre tank.

How the cap compares to the rest of the country

The cap is set against where national averages have just been sitting. The RAC's Fuel Watch puts the UK average for petrol at 168.45p and diesel at 197.27p (Sun, 13 November). Against those, Asda's capped petrol is about 8.75p cheaper and the diesel about 7.57p cheaper.

So the cap does two things at once. First, it locks in a price that is already several pence below the national average. Second, it stops that gap from closing if oil moves back up. If Brent climbs again, the forecourt prices of petrol and diesel across the country will follow, but Asda's Superstores will hold at 159.7p and 189.7p. The driver who fills up there is insulated from the next crude headline in a way the high street cannot offer.

That insulation is exactly what makes this different from the usual pump-price story. When we watched Brent fall and the pump barely move, the point was that forecourts follow wholesale costs with a lag, so a week of falling oil produces pennies, not pounds. The Asda cap is the opposite: it decouples the price from the wholesale cost altogether, for as long as the supermarket is willing to hold the line.

What the 4p cut does on its own

The temporary part of the move is worth stating separately, because it is smaller and it will not last in this form. An average of 4p a litre across the estate is worth up to £2.20 on a 55-litre fill-up, which is Asda's own figure for a typical family car (Asda, 12 November). The Sun works the van side of it: an 80-litre tank saves £3.20 at the new maximum prices, with a full tank of petrol costing £87.84 and diesel £151.76 (Sun, 13 November).

The timing is deliberate. The cut lands in the run up to Christmas, when forecourt prices historically hold firm and drivers are doing more mileage for less time. Asda frames it as part of a wider push on value, which follows its being named the cheapest supermarket for branded groceries by Which? (Asda, 12 November).

Why this is a CEO story too

The fuel move does not arrive in isolation. It follows the first official week of Asda's new chief executive, David Potts, who took the role on 3 November after heading Morrisons from 2015 to 2023 (Forecourt Trader, 13 November). On his first day in the role he asked store managers to focus on the parts of the shopping trip that matter, opening more full-service checkouts and getting more product on shelves. The fuel cap is the forecourt version of that same instruction.

Potts put it plainly: "When we get the fundamentals right, customers notice. Earlier this week, I set out a renewed focus on making the shopping trip better for our customers, and that means getting it right at the pumps too. With Christmas upon us, 4p off every litre helps families where they're feeling it most" (Asda, 12 November).

That framing is worth holding onto, because a supermarket fuel cut can be read as pure cost of living politics. Potts is not selling it that way. He is selling it as part of a value strategy, the same one that undercuts the branded oil majors on price, and he is doing it with a hard cap rather than a soft discount. The political framing will follow either way, but the commercial logic stands on its own: a forecourt is a footfall generator, and cheap fuel at 5pm on a Thursday in November is an easy way to keep people coming into the store.

What it does not change

The cap changes one retailer's prices, not the market. The national average for diesel is still close to the £2 line that set the record this autumn, and the wider pump-price picture has barely moved off its highs since the oil shock began (our piece on the Brent fall and the lag at the pump). A driver who does not shop at Asda, or who lives near an Express forecourt, sees none of this.

What has changed is that there is now a fixed reference price to measure the rest of the high street against. When diesel next creeps back up towards 200p, the question stops being whether prices are falling and becomes how far above 189.7p the average forecourt sits. That is a useful thing to have, even if it only helps the people who fill up at Asda.

Sources

• Asda, "Asda slashes fuel prices by 4ppl", 12 November 2026, corporate.asda.com
• Forecourt Trader, "Asda cuts fuel by 4p and introduces price cap across supermarket estate", 13 November 2026, forecourttrader.co.uk
• The Sun, "Fuel prices continue to fall as supermarket cuts costs for drivers", 13 November 2026, thesun.co.uk
• Deeside.com, "Asda cuts unleaded to 159.7p at Queensferry as supermarket takes 4p a litre off fuel", 13 November 2026, deeside.com
• Chronicle Live, "UK supermarket cuts petrol and diesel prices by 4p per litre at UK forecourts", 13 November 2026, chroniclelive.co.uk