It is a ship known generally as a tanker.
I am not sure, I wrote tanker.
tanker
Yes
petrol refinery
Oil is petrol
Petrol and oil will mix, with the petrol acting as a solvent.
Petrol is processed oil.
commenly oil is called liquid but some times petrol is also called liquid gold :v
50 parts petrol to 1 part oil... 20 litres of petrol to 500ml of oil
Petrol already has additives added, whereas, oil is not processed.
It is knowen as Crude oil before it has been refined... Once it's been refined it can then be called gasoline, petrol, diesel and just "Oil"
Oil may be added to petrol for two cycle engines to provide lubrication.