I've had my 1.4 ecotsi for about a month now. It says online I should be getting 55mpg mixed and up to 62mpg. I'm getting around 48mpg wherever I drive and however I drive
Mpg
- Thread starter Scotty2Hotty2002
- Start date
Hi and welcome to the site. It's worth looking in our Leon forum for your car I'm sure others will have shared their experiences or have a view to share.
Cheers,
Scott
Cheers,
Scott
If by your reference to online mpg for your car you’re referring to the official WLTP fuel consumption figures, I always take the view that the official mpg figures are rarely - if ever - achievable and are only really of use to give a comparative view of the fuel consumption of different makes / models of vehicle - e.g. the mpg of vehicle ‘A’ is 10% worse than that of vehicle ‘B’.
Also, you’ve owned your car for a very short period of time and during some of the colder months in the UK. From my personal experience, I‘ve always found that fuel consumption tends to be worse during cold weather than it is during warmer months. Lots of factors can have an adverse effect on fuel consumption - e.g.;
- Tyre pressures if they’re too low.
- Carrying unnecessary weight in the car.
- Lots of short journeys on a cold engine.
- Town / city driving involving lots of stopping and starting and driving in low gears.
- A poorly maintained vehicle.
I don’t own a Leon or a Seat, but the official WLTP quoted mpg figures for my car range from 55.4 worst to 70.6 best. Most of my driving is on A and B roads with journeys of 25 miles or more, usually at a steady speed of around 50mph. Traffic volumes tend to be high - hence why I don’t often get above 50 mph - although there are usually very few hold-ups. Therefore, based on the official WLTP figures, the journey types / distance and speed travelled, I’d consider I should be achieving closer to the upper official figure than the lower. However, my actual long term fuel consumption - measured over the last 6 months - is a shade over 56 mpg which is close to the lower official figure for my car. I consider myself to be a realist so I’m not at all unhappy with 56 mpg, even though it’s around 20% worse than the official best figure as IMHO, 56mpg is a realistic figure for my car in real world driving conditions.
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I do mostly motorway driving. I've come from an RCZ who's expected figures were 48mpg and I'd get 51. So I would have expected to get close to the advertised figures
The article at the link below suggests the official WLTP fuel consumption figures are somewhat optimistic, and real world fuel consumption for petrol engined cars is typically 24% worse than the official figures 
(there are other similar articles on the web quoting the same / similar figures). The 24% is an average figure, so the difference between actual mpg v’s official figures will vary by vehicle make and model.
www.autoexpress.co.uk
Assuming the 24% variance - official mpg to real world mpg - to be valid, then if the official mpg consumption figures you quoted in post #1 for your car range from 55 to 62, a real world fuel consumption figure of circa 48 mpg is probably a good indication of your car’s true fuel consumption.
If you monitor your fuel consumption over a longer period, you may see an improvement as you cover more miles - you’ve only owned your car for a short period, so your current fuel consumption might not be representative of the long term position. It might be worth monitoring manually or use one of the fuel apps such as Fuelly (others are available);
www.autoexpress.co.uk
(there are other similar articles on the web quoting the same / similar figures). The 24% is an average figure, so the difference between actual mpg v’s official figures will vary by vehicle make and model.
Real-world car emissions and fuel economy are 20% worse than advertised figures | Auto Express
European Commission has found that, on average, most cars are far less fuel efficient and environmentally friendly than official WLTP test results suggest
www.autoexpress.co.uk
Assuming the 24% variance - official mpg to real world mpg - to be valid, then if the official mpg consumption figures you quoted in post #1 for your car range from 55 to 62, a real world fuel consumption figure of circa 48 mpg is probably a good indication of your car’s true fuel consumption.
If you monitor your fuel consumption over a longer period, you may see an improvement as you cover more miles - you’ve only owned your car for a short period, so your current fuel consumption might not be representative of the long term position. It might be worth monitoring manually or use one of the fuel apps such as Fuelly (others are available);
Best fuel usage apps 2023 | Auto Express
Keep an eye on your running costs with our top choices
www.autoexpress.co.uk
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