Unsurprisingly, the 2.5-litre petrol engine is slightly thirstier than the 2.0-litre, but thanks to its rather under-stressed nature, it’s only 1mpg worse off in the official fuel consumption test (30mpg vs 29mpg). If it’s a petrol X-Trail you want, then, the 2.5 is actually the engine of choice.
As for the 2.2-litre diesel, this is the engine for those whose primary concern is fuel consumption, with a 39mpg official economy figure. Its 190g/km CO2 emissions rating is actually quite high, though, and not an awful lot better than that of the petrol versions.
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