Choosing diesel or petrol

When choosing between diesel or petrol, it's important to carefully consider your driving needs before making your decision. Both fuel options offer their own unique advantages. 

Recent government statements have left buyers confused about their next purchase. 

“24% do not know what fuel their next car will use1.” According to the AA-Populus Driver Poll


Combining impressive fuel economy and low CO2 with high levels of torque, recent EU6 models boast reduced emissions that can be comparable with petrol 3.

From September 2018, all new cars produced have passed a strict new emission test in addition to Euro 6 standards. It is also worth noting that Euro 6 engines won’t be charged under the UK government’s Clean Air Zone initiative 4.

“Diesel car drivers may also be able to spend less on fuel annually compared to those who use petrol 3.” According to the SMMT (The Society of Motor Manufacturers & Traders), New emissions tests press release


“The market for petrol engines is growing with registrations up 10.4% up on 20175 and in certain circumstances, petrol is the right consideration choice for many consumers.” According to the SMMT (The Society of Motor Manufacturers & Traders), New emissions tests press release

“Petrol engines are more suited to shorter journeys and insurance premiums are often lower for petrol-engine cars. Many drivers are reported to find that filling up tends to be less expensive 2.” According to the RAC, Petrol or Diesel buying guide

Making your choice

Urban driving

If you rarely drive on motorways and do minimal mileage that’s mainly in built-up city areas, such as for the school run or a short commute, then maybe consider a petrol engine.

Commuter or high mileage

High-mileage drivers predominantly making longer journeys on motorways and rarely travelling within the city. In this case, perhaps consider a diesel engine.

All-rounder driving

For those living outside the city, but regularly commuting by motorway, a diesel engine could be a good option for consideration. 

Rural and pleasure

When driving for pleasure on country roads, and are rarely in urban environments, then either a diesel or petrol could suit you. With the additional torque, consider that with a diesel engine you’ll experience quicker acceleration 2.

There’s no substitute for a test drive so arrange one with your local Sytner centre today. You’ll see diesel remains very versatile and offers a number of benefits. Official figures for many of our diesel engines show greater mpg than equivalent petrol engines‡. Speak to your Dealer to find out more .

SEAT Huddersfield SEAT North Wales





5 Figures refer to year-to-date 2017 vs. 2018 

Where indicated, facts and figures used in this text have been taken from reputable third party sources. SEAT UK understands these to be accurate, but has not independently verified the third party information. 

*Official fuel consumption for the Ateca SE 1.0 TSI Ecomotive 115PS in mpg (litres per 100km); urban 45.6 (6.2); extra-urban 56.5 (5.0); combined 52.3 (5.4). CO2 emissions 122 g/km. Official fuel consumption for the Ateca SE 1.6 TDI Ecomotive 115PS in mpg (litres per 100km); urban 54.3 (5.2); extra-urban 67.3 (4.2); combined 61.4 (4.6). CO2 emissions 120 g/km. Official fuel consumption for the Ibiza FR 1.6 TDI 95PS in mpg (litres per 100km); urban 68.9 (4.1); extra-urban 83.1 (3.4); combined 74.3 (3.8). CO2 emissions 100 g/km. Official fuel consumption for the Leon ST CUPRA 2.0 TSI DSG-auto 4Drive 300PS in mpg (litres per 100km); urban 31.4 (9.0); extra-urban 47.1 (6.0); combined 39.8 (7.1). CO2 emissions 161 g/km. Official fuel consumption for the SEAT range in mpg (litres per 100km); urban 31.4 (9.0) - 68.9 (4.1); extra-urban 43.5 (6.5) - 83.1 (3.4); combined 38.2 (7.4) - 74.3 (3.8). CO2 emissions 168 - 96 g/km. Fuel consumption and CO2 emissions figures are obtained under standardised EU test conditions (or, in cases of vehicles with WLTP type approval, are the NEDC figures derived from WLTP testing). These figures facilitate comparison between different models from different manufacturers, but may not represent the actual fuel consumption achieved in ‘real world’ driving conditions. NEDC figures derived from WLTP testing may not be equivalent to figures from NEDC testing, so comparisons may be unreliable. More information is available at Choice of wheels and other options may affect fuel consumption and emissions data. All figures are correct at time of publication 10/2018