As someone said earlier
The more volatile and vaporous constituants 'evapourate' from the petrol leaving a less volatile mixture remaining...yup petrol does go off
Octane rating....lets get this clear!!! higher rating does NOT mean a bigger bang and somehow more power!!
It means the fuel has a higher resistance to pre-ignighting or 'knocking' it basically resists ignighting untill the spark occurs and so is generally required in engines of higher compression and or performance, that by their very nature run hotter so require this more burn resistant fuel (holds off ignighting until the spark occurs)
Martin
On wings like angels whispers sweet
my heart it feels a broken beat
Touched soul and hurt lay wounded deep
Brown eyes are lost afar now sleep xxHayleyxx
I am in fact wearing a Tigger shirt as I type this. My GF has filled our home with Winnie and his pals. To put it mildly, she has enough of them to fill all the T25's I own.
Red Westie wrote:As someone said earlier
The more volatile and vaporous constituants 'evapourate' from the petrol leaving a less volatile mixture remaining...yup petrol does go off
Octane rating....lets get this clear!!! higher rating does NOT mean a bigger bang and somehow more power!!
It means the fuel has a higher resistance to pre-ignighting or 'knocking' it basically resists ignighting untill the spark occurs and so is generally required in engines of higher compression and or performance, that by their very nature run hotter so require this more burn resistant fuel (holds off ignighting until the spark occurs)
Martin
Martin,
My thoughts exactly. Wouldn't that be wonderful for those with high-compression engines?
I found an old petrol can full of unleaded the other day, whilst digging through the years of stored cr@p that seems to have engulfed my life. It must be at least 6 years old, so I assume it will be no good now. So, how do I actually dispose of it? My local dump doesn't have the facilities and obviously I can't just poor it down the drain. What shall I do with it?
FlowerPower wrote:I found an old petrol can full of unleaded the other day, whilst digging through the years of stored cr@p that seems to have engulfed my life. It must be at least 6 years old, so I assume it will be no good now. So, how do I actually dispose of it? My local dump doesn't have the facilities and obviously I can't just poor it down the drain. What shall I do with it?
You could use it to power your lawnmower. In the US we have facilities that take old gas.
FlowerPower wrote:
Why would it work in my lawnmower, but not my van?
Most lawnmowers are 2-stroke design. Those type of engines are not as finicky with fuel.
FlowerPower wrote:
Great, give me your address and I'll post it to you then.
I would love to have you send it to me. Unfortunately, you would need a license to send that across past our borders. I'm afraid the current administration is not too friendly to botanists or florists. Perhaps you should wait until after the election as a Democrat might win.
In the meantime, you might investigate places such as this: