Jaguar XF review – MPG and running costs
Thanks in part to being constructed from JLR’s uniquely heavy aluminium alloy, these XF’s aren’t as frugal as their acceleration figures would suggest
WLTP regulations have seen the XF's engine lineup change over the past few years and quoted economy figures have also taken a tumble – though it's important to realise that any such changes have also been suffered by competitors.
At its most efficient, the mild-hybrid diesel is rated at 57-50mpg on the combined cycle, which is a far cry from the 70mpg-odd the original quoted on the old system, but is a few MPG above previous XF diesels. All-wheel drive and Sportbrake models each remove a couple of MPG from the total though, dropping to around 45mpg for an all-wheel drive Sportbrake. In our experience, anything over 35-37mpg feels like a reasonable real-world expectation.
P250 models don’t seem too compromised on paper, rated at 35-31mpg, but the P300, with its bigger outputs and all-wheel drive drops this down to 32-30mpg. In the real world, our experience with the latter powertrain delivered some quite shocking results however, barely troubling the low 20mpg mark on a combination of motorway and fast A-roads. For comparison, on an identical road loop, an F Pace powered by a 394bhp straight-six petrol averaged similar numbers.