Get it serviced, get these done..
oil, oil filter
air filter
plugs
gearbox oil
fuel filter
If any of these are well overdue, it will hurt your MPG. They'll be cheap to do on a Focus
(at the point, might as well get coolant changed and brake/clutch/power steering fluid changed too. and pollen filter so it removes smells from the cabin
)
Check your tyre pressures are correct, if they're too low it can hurt MPG and make them wear out quicker.
oil, oil filter
air filter
plugs
gearbox oil
fuel filter
If any of these are well overdue, it will hurt your MPG. They'll be cheap to do on a Focus
(at the point, might as well get coolant changed and brake/clutch/power steering fluid changed too. and pollen filter so it removes smells from the cabin
)Check your tyre pressures are correct, if they're too low it can hurt MPG and make them wear out quicker.
I don't really try to drive economically either. The 45MPG run was done on the A303 to Devon on back, so hardly a nice flat motorway.
