Anyone with a garage full of 44s?

Optimax works well for me.

Oh, that seal. Little plastic thingy. Unless your can is full, I guess
it just seals in air for your fuel to react with.

How long do you keep petrol in drums for? Under cover or out in the sun?
Are the drums full and airtight?

http://www.faqs.org/faqs/autos/gasoline-faq/part1/section-4.html

Here's what it says:


<<Stability
Motor gasolines may be stored up to six months, consequently they must not
form gums which may precipitate. Reactions of the unsaturated HCs may
produce gums ( these reactions can be catalysed by metals such as copper ),
so antioxidants and metal deactivators are added. Existent Gum is used to
measure the gum in the fuel at the time tested, whereas the Oxidation
Stability measures the time it takes for the gasoline to break down at 100C
with 100psi of oxygen. A 240 minute test period has been found to be
sufficient for most storage and distribution systems.>>

 

Let go of your footnoting BTH. That thesis you spent 8 years on can't
control you anymore.

 

But I *like* footnotes[1]!


BTH
[1] rather a lot