Technical specs and performance data for the Ford Focus ST 2.0 EcoBlue Fuel Tank Capacity 47 Litres Tow Capacity 750-1,800 kg. Length 4,388 mm. Width 1,825 mm. Your usage of AdBlue depends on your vehicle use, load being carried and driving style. As a guide, a tank of AdBlue typically lasts 12,000 to 16,000 km of normal driving for Everest, and 9,000 to 11,000 km for Transit & Transit Custom.Further information can Ad-blue - the ionised water, and hyper purified urea mix. £29.99! Come on!!!! Funny how you can find this new mysterious fluid in places such as Euro Car Parts, Amazon and even Halfords. Halfords - 10 Litres for £11. Now, unless the ad-blue tank is 30 litres, I'd say Jaguar are taking the urea. My November 2020 Ford Focus Ecoblue 1,5 lt with the 120hp has a blue cap next to diesel refuelling hole that writes 'ADBLUE' on it. Ford dealership told me that it has an autonomy of 7.500 km (4.660 miles) and it also has a virtual gauge on the info screen same as the analogic gauges for water temp and fuel tank. Diesel Exhaust Fluid (DEF) also known as Reductant is a fluid comprised of highly purified and deionized water and urea. DEF is highly corrosive. Avoid exposure to electrical components. It is normal for DEF to freeze at temperatures below 120F/-110C. Only API certified DEF should be used in Ford reductant systems. The combined rating, then, based on an estimated 55% highway and 45% city driving schedule (again, your mileage may vary with your personal driving needs and habits), is 35 miles to the gallon. With its 12.4-gallon tank, the Focus is able to get you as far as 434 miles on a tank, according to the EPA website. Pros and Cons. Reduced emissions: Naturally, the main benefit of AdBlue fluid is that it reduces greenhouse gas emissions. Fuel economy: While only marginal, the blue diesel additive can improve The adblue cap does - so far so good, So you fill up the adblue tank from a canister, the nozzle for this usually springs up as its taken out and you get a few drips splashed about. All OK so far - except H7fAuKZ.