Today I bought the BCB " Petrol Lighter". Recently there was a thread questioning what to fill zippo lighters up with. This is essentially a zippo with a different name. One poster said never to fill it up with petrol (gas). The lighter is called a petrol lighter, so what should I fill it up with?

I have a Zippo. I usually fill it with petrol for petrol stoves. My lighter is sealed with a bicycle inner tube. It works good and it lasts about two weeks. Of course you can always use lighter fluid.
You should not use petrol for car engines. It´ll work but it´s not good for you.
You should never use lamp oil or diesel. That wont ignite and it takes a long time to evaporate (BTDT).

Thanks.