I would personally hazard a guess at diesel. It does have such a low octane number that octane isn’t really a relevant factor for it, it won’t immediately destroy an engine, and Russia’s oil & gas industry will already be making it in large quantities and probably even transporting it to the same places as the petrol
Sorry, to clarify: my guess is that the petrol is being diluted with diesel. That would work better than most other adulterants, and it would also explain a drop in measured octane. I dd specifically mean octane; you can measure diesel’s octane and it is very low, it’s just not relevant in normal usage because diesel engines ignite their fuel differently to petrol ones
I would personally hazard a guess at diesel. It does have such a low octane number that octane isn’t really a relevant factor for it, it won’t immediately destroy an engine, and Russia’s oil & gas industry will already be making it in large quantities and probably even transporting it to the same places as the petrol
Diesel is rated by cetane, not octane, and the cetane numbers are lower. There’s nowhere that diesel would have a cetane pump rating of 92.
That’s certainly gasoline.
Sorry, to clarify: my guess is that the petrol is being diluted with diesel. That would work better than most other adulterants, and it would also explain a drop in measured octane. I dd specifically mean octane; you can measure diesel’s octane and it is very low, it’s just not relevant in normal usage because diesel engines ignite their fuel differently to petrol ones
Ohhhhhhhh yeah that makes sense!