A vehicle like this takes 355 litres of diesel and uses 22 litres an hour.So the target of 30% more efficiency would make a big difference.
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Clear weather develops overnight into Monday. Cold days and frosty nights. Mainly dry inland - but a wintry risk continuing in the east
Icy first thing and windy, with wintry showers lingering further south, especially at the coast. Brighter elsehwere
Emma brings you Saturday's forecast