Yes at back of engine and difficult to get to!
Do you mean the Dealer (oem) number, or one the after market companies? Call the dealer and make sure you find out what engine you really have.
20L
it should be at the very bottom of your center console like under the radio
1 of them.
20L is about 5.3 US gallons.
Yes.
4002 (or) 20L by 20W
50
4.25 qts
Nebuchadnezzar is 20L, that's big.
On average about 20L of water is used when cooking.