[LISTEN] Does petrol have an expiration date?
Petrol by definition is millions of years old, says Naked Scientist Chris Smith.
Asked if it has an expiration date, Smith explains the science behind the substance and what could affect its longevity.
When we take that crude oil out of the ground by drilling a hole and feed that crude oil into a refinery, you split that crude oil up and make certain combinations of those fractions to make petrol so what is in the petrol is already millions of years old, but the blend that goes into the petrol that give it its characteristics, those things are going to be a unique combination...Chris Smith, Naked Scientist
If you leave petrol in a sealed environment it chemically wouldn't change but obviously, you can't do that because it expands and contracts so you have to have a vented container for your petrol. That means some of the fractions will overtime evaporate from the petrol mix...Chris Smith, Naked Scientist
So old petrol, unless it has been in a genuinely sealed environment with no prospect to escape, which would be unsafe, old petrol is not going to be good as fresh petrol. It's better to always have fresh petrol if you can.Chris Smith, Naked Scientist
Click on the link below to hear more from Smith...
Talented actor, dancer, comedian and activist Siv Ngesi says where there is uncomfortability that is where the growth is happening.Read More
The rapper urged South Africans to adhere to social distancing guidelines and to wear their masks.Read More
The 80-year-old passed away over the weekend at Park Lane hospital in Johannesburg.Read More
Clement Manyathela speaks to experts about the evolution of the magazine industry.Read More
The lockdown did it – not the pandemic – so we can’t pay, argues Santam. Bruce Whitfield interviews Tracey Davies of Just Share.Read More
The book does not yet have a title but will be published next year, ahead of the forthcoming Lions tour to South Africa in 2021.Read More
Bruce Whitfield talks to SweepSouth cofounder Aisha Pandor about her attitude to money (hopes and fears, successes and failures).Read More
The Money Show’s Bruce Whitfield interviews columnist Tom Eaton about his new book, "Is it me, or is it getting hot in here?"Read More
The exhibition comprises of 45 pieces sculpted from bone.Read More
Clement Manyathela speaks to clinical psychologist Ruth Ancer about the reasons why some people may be refusing to social distanceRead More