Is it true that purchasing diesel helps you save money? Or is buying gasoline the better deal? Find below our fuel-cost calculator, which will assist you in selecting the most appropriate engine for your vehicle.

Petrol vs diesel buying guide 447570

You can quickly calculate and evaluate the difference in annual fuel costs between two vehicles using our convenient fuel cost calculator, which is located below (petrol and diesel, or otherwise). In addition, we provide our very own mpg figures for every vehicle that we evaluate.

The real-world driving conditions serve as the basis for our comprehensive vehicle evaluations. We simulate city streets, roads outside of the city, as well as highways, which is something that official tests do not do. In addition to presenting you with an overall mpg figure, we break down each individual figure for you.

In this way, you will be able to see exactly what the numbers mean for your wallet based on the typical type of driving that you do. However, the price of fuel is not the only factor you should think about when purchasing a new vehicle. To be considered a Best Buy, a vehicle must be one that is dependable, economical, comfortable, secure, and enjoyable to drive.

You can find out which vehicle we recommend by going to our list of the best cars for 2021.

Here is a guide that will help you decide whether you should buy a car that runs on gasoline or diesel fuel. It will provide you with all the information you need to make an informed decision.

Calculator that compares the cost of diesel fuel to that of gasoline: is the diesel surcharge justified?

To include another vehicle in the comparison, select the appropriate checkbox.

Combine the MPG ratings of the two vehicles in question.

Include your yearly mileage; the majority of Which? members travel approximately 9,000 miles annually.

You can find information about the current price of fuel on websites such as the AA and; alternatively, you can call your neighbourhood gas station. In the market for a new automobile?

Proceed directly to our evaluations of new and used automobiles.

If you have no interest in trading in your current vehicle, you can breathe new life into the bodywork by purchasing one of the scratch remover kits from our extensive inventory.

Cost of operating a gasoline-powered vehicle each year

In the following table, we’ve done the math to determine how much it costs in annual fuel expenses to operate three of the most popular models available in the small, medium, and SUV car classes. Because there has been a recent drop in demand for diesel automobiles, we have decided to concentrate our attention solely on gasoline-powered models. Supermarkets and various fuel forecourts and service stations

Honda CR-V (2018-)                     £1,367.35                                        £1,367.35£1,430.08


VW Golf (2013-2020)                    £897.22                                              £946.42


Honda Jazz (2015-2020                   £928.23                                            £979.13


based on an annual driving average of 9,000 miles


Data on the average price of fuel was collected from 1,500 gas stations in the UK over a period of ten weeks beginning on March 16, 2020 and ending on May 18, 2020.

Every one of our in-depth reviews of automobiles includes data on the fuel economy of every engine configuration that has been independently and laboratory-verified by us.


You will have an easy time comparing the costs of fuel because we will tell you how much money each engine will cost you on a monthly and yearly basis for fuel expenses.