Published on February 28, 2026 | Category: Costco 攻略

【入油慳幾多？】Costco 油站實測：要入幾多次油先賺得返張會員卡？

在英國，揸車是很多移英港人的生活必需，而每個月的油費絕對是一筆不小的開支。很多人聽說「去 Costco 入油好平」，甚至有人專門為此申請一張價值 £42 的 Gold Star 會員卡。但究竟 Costco 的油價比外面平幾多？到底要入幾多次油先可以「回本」？

今日我就用真實數據，為大家計一計這條數！

1. 英國油價大比拼：Costco 到底平幾多？

英國的油價主要分為三個類別：最貴的傳統油站（Premium Brands 如 BP, Shell）、中等價位的超市油站（如 Tesco, Asda），以及主打低價的 Costco。

根據 2026 年初的數據，英國 Unleaded (無鉛汽油) 的平均價格大約在 134p 至 142p 每公升 (pence per litre) 之間。如果對比不同品牌：

傳統油站 (Premium)： 平均約 134.7p。
超市油站 (Supermarket)： 平均約 129.5p。
Costco 油站： 通常是全區最平，平均可低至約 123.6p（甚至有分店低見 116.9p）。

由此可見，Costco 的油價平均比傳統油站平約 11p/L，比一般超市油站平約 6p/L！

2. 實測計數：幾時先賺得返 £42 年費？

要進入 Costco 油站，您必須持有 Costco 會員卡。以最常見的 Individual Gold Star 會員為例，年費是 £42。讓我們來算算「回本期」。

🚗 假設情境：

您的車款： 一般家庭車，油缸容量約 50 公升。
每公升差價： 假設 Costco 比您家附近的超市油站平 6p/L。
每次入滿 (Full Tank) 節省： 50L x 6p = 300p = £3.00。

💡 結論： 如果您每次都入滿 50L，您需要入 14 次油 (£42 ÷ £3) 才能完全賺回年費的成本！

3. 以英國平均行車里數計算

如果您覺得「入 14 次油」的概念有點抽象，我們可以用行車里數來計。根據 2024 年至 2026 年的統計，英國汽油私家車 (Petrol Car) 的平均每年行駛里數大約是 6,200 英里 (Miles)。

假設您的愛車耗油量大約是 40 MPG (Miles Per Gallon)，大約等於 8.8 Miles per Litre (Miles/L)。
一年行駛 6,200 miles，大約需要消耗 705 公升汽油。
如果您這 705 公升全部都在 Costco 入（每公升慳 6p），一年可以慳：705 x £0.06 = £42.30。

這意味著： 如果您是一個「Average Driver」，而且每次都堅持去 Costco 入油，單靠油費的差價，剛好足夠抵銷您那一年的 £42 會員費！這還未計算您在 Costco 內買平價日用品、廁紙和食物等所省下的錢呢。

4. Costco 入油注意事項

雖然油價平，但去 Costco 入油也有幾個要點需要留意：

營業時間長： 油站的營業時間通常比 Costco 長，例如星期一至五通常早上 6 點就開門，營業至晚上 9 點半。您可以選擇在返工前或放工後去，避開周末的人潮。
全自助及只限卡付款： 所有 Costco 油站都是自助服務 (Self-service)。不收現金，只接受信用卡或扣帳卡 (Debit Card) 付款。入油前需先在機器插入會員卡認證。
有上限設定： 每次刷卡入油，機器通常會有一個授權上限（例如 £99 或 £100），達到該金額就會自動停泵。

總結

如果您住得離 Costco 不遠（或者在您每天上下班的必經之路上），單靠入油來回本絕對是可行的，尤其是對於耗油量較大或經常長途駕駛的車主來說更是「必賺」。下次去 Costco 入油和買餸時，別忘了開啟我們的 Costxx 購物助手，邊買邊對數，做個全方位的精明消費者！

如果你覺得這篇實測有用或
工具對您在英生活有幫助，
歡迎請我飲杯咖啡！☕

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Published on February 28, 2026 | Category: Costco Tips & Tricks

[How Much Can You Save?] Costco UK Petrol Test: How Many Fill-Ups to Recoup Your Membership Fee?

In the UK, driving is a necessity for many immigrants, and monthly fuel costs are definitely a significant expense. Many people hear that "petrol is really cheap at Costco," and some even apply for a £42 Gold Star membership card specifically for this reason. But exactly how much cheaper are Costco's petrol prices compared to the outside? And how many times do you need to fill up to "break even"?

Today, we're using real data to do the math for you!

1. UK Petrol Price Comparison: How Much Cheaper is Costco?

Petrol prices in the UK generally fall into three categories: the most expensive traditional petrol stations (Premium Brands like BP, Shell), mid-priced supermarket petrol stations (like Tesco, Asda), and the low-price-focused Costco.

Based on data from early 2026, the average price of Unleaded petrol in the UK ranges from 134p to 142p per litre. If we compare different brands:

Traditional Stations (Premium): Average around 134.7p.
Supermarket Stations: Average around 129.5p.
Costco Stations: Usually the cheapest in the area, averaging as low as 123.6p (some branches even drop to 116.9p).

From this, we can see that Costco's petrol prices are on average about 11p/L cheaper than traditional stations, and about 6p/L cheaper than regular supermarket stations!

2. Real Test Calculation: When Will You Make Back the £42 Annual Fee?

To enter a Costco petrol station, you must hold a Costco membership card. Taking the most common Individual Gold Star membership as an example, the annual fee is £42. Let's calculate the "break-even period".

🚗 Hypothetical Scenario:

Your Car: A standard family car, fuel tank capacity of about 50 litres.
Price Difference Per Litre: Assume Costco is 6p/L cheaper than your local supermarket petrol station.
Savings Per Full Tank: 50L x 6p = 300p = £3.00.

💡 Conclusion: If you fill up a full 50L every time, you need to fill up 14 times (£42 ÷ £3) to fully recoup the cost of your annual membership fee!

3. Calculating Based on Average UK Mileage

If the concept of "filling up 14 times" is a bit abstract, we can calculate it using driving mileage. According to statistics from 2024 to 2026, the average annual mileage for a petrol car in the UK is about 6,200 miles.

Assume your car's fuel consumption is about 40 MPG (Miles Per Gallon), which roughly equals 8.8 Miles per Litre (Miles/L).
Driving 6,200 miles a year requires consuming about 705 litres of petrol.
If you fill up all 705 litres at Costco (saving 6p per litre), you can save in a year: 705 x £0.06 = £42.30.

What this means: If you are an "Average Driver" and consistently go to Costco for petrol, the savings from fuel prices alone are just enough to offset your £42 membership fee for that year! This hasn't even factored in the money you save buying discounted daily necessities, toilet paper, and food inside Costco.

4. Things to Note When Getting Petrol at Costco

Although the petrol prices are cheap, there are a few key points to keep in mind when filling up at Costco:

Longer Opening Hours: The petrol stations usually have longer operating hours than the Costco warehouse itself. For example, Monday to Friday, they often open as early as 6:00 AM and close at 9:30 PM. You can choose to go before or after work to avoid the weekend crowds.
Fully Self-Service & Card Only: All Costco petrol stations are self-service. They do not accept cash; you can only pay with a credit or debit card. You must insert your membership card into the machine for verification before you can start pumping.
Pre-authorisation Limits: Every time you swipe your card for petrol, the machine usually has a pre-authorisation limit (e.g., £99 or £100). The pump will automatically stop when it reaches that amount.

Conclusion

If you don't live too far from Costco (or if it's on your daily commute), breaking even solely through petrol savings is absolutely feasible, especially for owners of less fuel-efficient vehicles or those who frequently drive long distances. Next time you go to Costco for petrol and groceries, don't forget to open our Costxx Shopping Helper, track your spending as you shop, and be a comprehensively smart consumer!

If you found this test useful or
the tools helpful for your life in the UK,
feel free to buy me a coffee! ☕