22 replies to this topic

[Steam]

Stabil is the one that the motorboat and fishing guys use in their outboards over winter over here and they reckon it works.

The alternative fuels looks interesting but may be a way off yet.

[Spider]

 

There are fuel preservers available. They generally extend the life of stored fuel out about 6 - 9 months.

Just be aware, they are a preserver though, so they need to be added to fresh fuel. They won't bring fuel back from the dead !

There'd be little point n using it if you are driving your Mini often, but when winter comes and you are likely to park it up, that's the time to add it then.

Any particular make you can recommend

 

 

I haven't tried any long term to make any suggestions here.

[Spider]

I was just going through some old photos.

Who here remembers the good old days of leaded fuels ?

You could tune off the tail pipe !

 

[Steam]

Is it mainly octane rating that is lost or there other factors at play when petrol is left to sit?

[Spider]

Is it mainly octane rating that is lost or there other factors at play when petrol is left to sit?

 

OK, this'll do your head in. The 'hot run' Octane in the first roughly 8 - 10 weeks actually increases, then drops off rather sharply, while the 'cold run' Octane drops off right from the get-go.

There's other components that change at very different rates. This is not really a straight forward subject to cover and I'm no chemist !

He's what BP has to say on it;-

 

 

 

[Steam]

Thanks for that.
On the contrary, it was doing my head in before. Now I can understand a bit more what is going on.
I asked because having had petrol go stale before I have never had any noticeable detonation or pinging. And every time the effects of stale old fuel seems to be different. I was thinking the weather etc effects what evaporates out and what is left behind.
And the reasons that I suffer from old fuel is 2 fold. I should drive the cars more often and living in the sticks the quality and age of fuel is questionable to start with.

[absx2]

I was just going through some old photos.

Who here remembers the good old days of leaded fuels ?

You could tune off the tail pipe !

 

Mine looked like that when I blagged some Avgas that was considered too old to use in a light aircraft   

They were right as I had to adjust the timing due to pinking but it did a lovely job of prolonging the life of my valve seats.

[bpirie1000]

Sure there is an additional octaine booster that you can buy to up the octaine of thenfuels these days.

Race bikes use super octaine fuels which are very regimented in where they get it from withnloads of tests being done throughout the race series.


Our local farmer leaves a full tank of diesel in his combine harvester over winter when it is parked up to save the metal diesel tanks rusting.