A man runs out of petrol

A MAN was driving down the road and ran out of petrol. At that moment, a bee flew in his window.
"What seems to be the problem?'' asked the bee.
"I'm out of petrol,'' the man replied.
The bee told the man to wait right there and flew away. Minutes later, the man watched as an entire swarm of bees flew to his car and into his petrol tank.
After a few minutes, the bees flew out.
`"Try it now,'' said the bee.
The man turned the ignition key and the car started right up.
"Wow,'' the man exclaimed. "What did you put in my petrol tank?''
"BP,'' answered the bee.