Skip advert
Advertisement

Subaru Forester (2018-2024) - MPG, CO2 and running costs

The Forester’s e-Boxer system has improved emissions but fuel economy is still the Subaru’s downfall

MPG, CO2 and Running Costs rating

3.0

How we review cars
Avg. savings
£3,000 off RRP*
Find your Subaru Forester
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

Just so you know, this is an older review of the 2018-2024 Forester. If you are interested in information about the current Subaru Forester, or news about the latest Subaru models, please follow the links provided.

Petrol-powered Subarus have never been synonymous with fuel efficiency and the latest Forester’s e-Boxer system aims to address this. Unfortunately, thanks to the fuel-sapping demands of its permanent four-wheel drive system, the Forester isn’t especially frugal – figures on the WLTP average cycle are 34.7mpg; CO2 emissions sit at 185g/km.

Advertisement - Article continues below

The majority of the Forester’s rivals will be cheaper to run. Most are available in lighter, more efficient front-drive formats, while most four-wheel drive options will be powered exclusively by diesel engines. Within the niche of off-road-ready family SUVs, even the much larger SsangYong Rexton runs the Forester close from a running costs standpoint: an entry-level five-seater model returns 32.9mpg on average, with CO2 emissions of 225g/km – all in a package that’s more akin to a Land Rover Discovery in size. 

Subaru has made an effort to tackle emissions with its e-Boxer mild-hybrid system, which, alongside a CVT transmission, allows for coasting and electric assistance at lower speeds. The system is also used as part of Subaru’s X-Mode system, helping improve low-down torque when tackling difficult obstacles.  

Insurance

British security expert Thatcham has given the Subaru Forester e-Boxer an insurance rating of group 19 for the XE, with the XE Premium slightly higher at group 20.

Depreciation

Our experts predict that the Forester will hold on to around 42 to 44 per cent of its value after three years and 36,000 miles come trade-in time. That’s not a great figure; by contrast, the SEAT Tarraco looks set to retain as much as 48 per cent of its value over the same period, while the Ssangyong Rexton will retain up to 51 per cent. Traditional Subaru owners who keep their cars well beyond the usual three-year cycle won’t have too much to worry about, however.

Skip advert
Advertisement

New & used car deals

Subaru Forester

Subaru Forester

RRP £39,995Avg. savings £3,000 off RRP*Used from £22,999
Kia Sportage

Kia Sportage

RRP £28,065Avg. savings £2,773 off RRP*Used from £15,876
Nissan Qashqai

Nissan Qashqai

RRP £27,415Avg. savings £5,924 off RRP*Used from £12,697
Volkswagen Golf

Volkswagen Golf

RRP £24,625Avg. savings £2,271 off RRP*Used from £12,700
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Peugeot 208 GTi: electric hot hatch gets stunning looks and plenty of power
Peugeot E-208 GTi - reveal front

New Peugeot 208 GTi: electric hot hatch gets stunning looks and plenty of power

Hot Peugeot E-208 gets racier styling, 276bhp and does 0-62mph in just 5.7 seconds
News
13 Jun 2025
New BYD Dolphin Surf Comfort review: the best BYD yet
BYD Dolphin Surf Comfort - front

New BYD Dolphin Surf Comfort review: the best BYD yet

The new BYD Dolphin Surf Comfort is arguably the Chinese brand's most convincing model in its range
Road tests
11 Jun 2025
New entry-level Renault Symbioz is £3k cheaper than a Nissan Qashqai
Renault Symbioz hybrid - front angled

New entry-level Renault Symbioz is £3k cheaper than a Nissan Qashqai

The Renault Captur has also been fitted the new full-hybrid powertrain, which gets a bigger battery for more pure-electric driving
News
12 Jun 2025