Should I choose a diesel or a petrol car?
I am very interested in purchasing a used Dacia Duster 1.5-litre diesel dCi Laureate (110) Euro 6 vehicle with a 4x2 (2WD) drivetrain. As the engine is diesel-powered l am expecting it to have better fuel consumption/mileage than the 1.5-litre petrol-powered model: maybe an extra 5mpg? Given that diesel in the UK is 8-10p more expensive pet litre and l am doing +/-18000 miles a year, is owning the diesel version more beneficial than the petrol version? (both engines put out approximately the same horsepower: 105hp for the petrol and 106hp for the diesel.
Asked on 31 October 2025 by Zimbok
Answered by
Matt Robinson
On that kind of mileage, the diesel does probably make more sense. UK-bound Dusters weren't ever available with a 1.5-litre petrol as far as we're aware, so we're assuming it's the 1.6 petrol you're thinking of. In that case, the difference in economy according to the official figures is actually more like 20mpg. If it matters to you, the diesel versions also have a higher towing capacity.
Our Fuel Cost Calculator shows you which will be the best choice for you.
Compare the running costs of petrol, diesel and electric cars to make the right choice for you.
Similar questions
I do about 100 to 120 miles per week combination of motorway and city. Should I buy a petrol or a diesel car?
We've always bought diesel cars as they do many miles, good MPG etc. We are looking at replacing our car - what's best to buy now diesel, petrol or hybrid?
We don't want an electric - they just do enough...
We now live in town and rarely use the car during the week, only every second weekend and holidays go to a cottage 100 miles away on mainly open roads - so probably only about 8000 miles a year. We are...
Elsewhere on 
