The 16 diesel cars that consume the least fuel

There was a time when they were preferred by the vast majority of drivers, but in recent years they have lost a lot of market share, though there are still those who are hesitant to abandon diesel engines in favor of other more efficient mechanics such as electrified powertrains in a traditional or plug-in hybrid configuration, as well as 100% electric models that are becoming more and more relevant. However, several major automobile manufacturers continue to gamble on this sort of mechanics, which results in cars with relatively low consumption, as seen in the categorization that we are about to learn about. Prior to that, it is also useful to know the identification of the automobiles on the market that spend less on gasoline.


The majority of them are utility vehicles, but there are also bigger ones, in the shape of compact ones, whose larger dimensions do not prohibit them from being among the most efficient on the market, as long as they are powered by diesel mechanics. Also, how could it be otherwise, a few SUVs arise, models that manage to homologate a relatively low fuel consumption given their features despite their higher corpulence and height. Who knows, we may be in the final years of this sort of motor driven by diesel, yet many people are still thinking about it, especially because certain automobile makers continue to bank on their use. Furthermore, some of the models on this list are also on another key one, that of the best-selling automobiles in Spain during the last year.


Perhaps the date that will suffice to permanently remove diesel engines from the market is 2035, the year set by MEPs from the Environment Commission to prohibit the sale of new gasoline and diesel automobiles, including hybrid vehicles. (the most affordable hybrids on the market). If this prohibition is implemented, it will signal a watershed moment for an automotive industry comprised entirely of electric vehicles, as will occur in California that year. Having said that, it's time to meet the 16 diesel automobiles that use the least amount of fuel at the present.


Vauxhall Astra

Vauxhall Astra
Vauxhall Astra

Because Opel is part of the Stellantis Group, the German compact shares the powertrain with other cars of the French behemoth, such as the Peugeot 308, and has a 1.5-liter engine with 130 horsepower and a maximum torque of 300 Nm under the hood. The Opel Astra can go 100 kilometers on 4.5 gallons of diesel thanks to its presence.


Vauxhall Mokka

Vauxhall Mokka
Vauxhall Mokka

Its four-cylinder 1.5-liter diesel engine generates 110 horsepower and a maximum torque of 250 Nm, and it is paired with a six-speed manual transmission that transmits all of the power to the front wheels. Because of its efficient mechanic, the Opel Mokka has a combined fuel consumption of 4.4 liters per 100 kilometers and CO2 emissions of 116 gr/km.


Peugeot 2008

Peugeot 2008
Peugeot 2008

The other SUV in this class follows in the footsteps of its German cousin because they share the same mechanics, therefore the Peugeot 2008 likewise gets 4.4 liters per 100 kilometers. However, its peak speed ranges from 180 to 200 km/h, and its acceleration from 0 to 100 km/h takes 9.5 seconds, making it more than 1 second quicker than the Mokka.


Hyundai i30

hyundai i30
hyundai i30

The Hyundai i30, which has a 1.6-liter turbodiesel engine that generates 116 horsepower and a maximum torque of 280 Nm, also requires 4.4 liters to cover 100 kilometers. This engine is paired with a six-speed manual transmission that directs all of the power to the front wheels, allowing the Korean compact to hit 192 km/h.


Citroen C4

 Citroen C4
Citroen C4

Because the Stellantis Group is one of the classification's protagonists, many of those present here share motorization. The major protagonist, in this case, is the 1.5-liter, 110-horsepower engine, a system that allows the Citroen C4 to achieve 4.3 liters every 100 kilometers.


Peugeot 308

peugeot 308
peugeot 308

The French small is powered by the same 1.5-liter four-cylinder engine as before, but it now produces 130 horsepower and a maximum torque of 300 Nm. These better results are associated with reduced fuel consumption, as the Peugeot 308 is happy with 4.3 liters per 100 kilometers.


Fiat Type

Fiat Type
Fiat Type

The Italian compact slips into our list with its five-door design and turbodiesel mechanics with a 1.3-liter capacity. It produces 95 horsepower and a maximum torque of 200 Nm when combined with a five-speed manual transmission, allowing the Fiat Tipo to achieve an average fuel economy of 4.3 l/100 km.


Audi A3

Audi A3
Audi A3

The Audi A3 employs a well-known propellant, the 2.0 TDI, a four-cylinder engine capable of producing 150 horsepower and a maximum torque of 360 Nm, allowing the small to reach speeds of up to 228 km/h. All of this while consuming only 4.2 liters per 100 kilometers and emitting 109 g/km of CO2.

Seat Leon

Seat Leon
Seat Leon

The Seat León, a small that in its current generation employs the aforementioned 2.0 TDI block, in a little more decaffeinated form that delivers 115 horsepower and a maximum torque of 300 Nm, likewise requires 4.2 liters of petrol to complete a 100-kilometer journey. The transmission is a six-speed manual, and the highest speed is limited to 200 km/h, with a 0 to 100 km/h time of 10.2 seconds.


Volkswagen Golf

volkswagen golf
volkswagen golf

The Wolfsburg compact could not possibly be left out of this list, joining its immediate cousins. As with the Leon, the most efficient mechanism of its complete line of diesel engines offer 115 horsepower and is paired with a six-speed manual gearbox. In this manner, the Volkswagen Golf can drive 100 kilometers on 4.2 gallons of petrol.


Citroen C3

Citroen C3
Citroen C3

The French utility vehicle can likewise drive 100 kilometers on 4.2 liters of gasoline, due to a turbodiesel engine similar to the one discussed in prior situations, but this time with 100 horsepower. The maximum torque remains 250 Nm, and the transmission is a five-speed manual. The highest speed of this Citroen C3 variant is 188 km/h.


Ford Focus

 ford focus
ford focus

The Ford Focus has just been upgraded, and with the upgrades brought by the oval brand, it is now positioned as one of the most intriguing compacts in the sector. Among its several engines is a 1.5 EcoBlue engine with 120 horsepower, which manages to normalize an average consumption of 4.2 liters per 100 kilometers.


Skoda Octavia

Skoda Octavia
Skoda Octavia

The Czech sedan, like the previous one, is powered by a 2.0 TDI engine with 115 horsepower. The Skoda Octavia is the most capacious of the cars on our list, and its authorized average consumption of 4.1 liters per 100 kilometers places it among the most economical. It emits 109 gr/km of CO2 and has a top speed of 211 km/h.


Renault clio

renault clio
renault clio

The same consumption is recorded by a Renault Clio, which can go 100 kilometers on 4.1 liters of gasoline thanks to its 1.5-liter four-cylinder turbodiesel engine. This engine has just two valves per cylinder, produces 100 horsepower, and is paired with a six-speed manual transmission.


Vauxhall Corsa

Vauxhall Corsa
Vauxhall Corsa

The Opel Corsa, like the last model mentioned, can drive 100 kilometers on 4.1 liters of gasoline, making it an appealing option for anybody searching for an economical diesel utility vehicle. Its engine produces 100 horsepower and a maximum torque of 250 Nm, and it is paired with a six-speed manual transmission.


Peugeot 208

peugeot 208
peugeot 208

The Peugeot 208 is not the quickest in the class, with a time to 100 km/h of 10.2 seconds and a top speed of 188 km/h, but it is the most fuel-efficient, consuming 4 liters per 100 kilometers. This is made possible by the motorization outlined in previous situations, namely the 1.5-liter, 100-hp block.

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