i just bought a ford fusion 1.6 on a 53 plate.
couple of things id like help on please.

1) how do i work the windscreen washers as when i try to squirt the wate ronto windscreen i can hear the pump going but notihng comes out the jets. i have had it working occasionaly but i dnt no if im doing it wrong.

2) the capacity of tank is 45 litres and how much shud i be doing mileage wise on a full tank of petrol. petrol is 125.9 where i live.