▲ 642 ▼ Found a Real Life Meme at the Gas Station (sh.itjust.works) submitted 3 months ago by jubilationtcornpone@sh.itjust.works to c/politicalmemes@lemmy.world 143 comments fedilink hide all child comments
[–] deadbeef79000@lemmy.nz 10 points 3 months ago (3 children) Huh, how does the octane rating work in the US? Common octane ratings in NZ are 91, 95, & 98. I'm guessing that there are different ways to calculate the rating, rather than the actual fuel being that different. permalink fedilink source hideshow 6 child comments replies: [–] RandomStickman@fedia.io 26 points 3 months ago (1 child) In Canada, The United States, and Mexico, the advertised octane rating is the average of the RON and the MON, called the Anti-Knock Index (AKI). It is often written on pumps as (R+M)/2. AKI is also sometimes called PON (Pump Octane Number). Because of the 8 to 12 octane number difference between RON and MON noted above, the AKI shown in Canada and the United States is 4 to 6 octane numbers lower than elsewhere in the world for the same fuel. There's a table in the wiki article that shows the equivalence of different systems https://en.wikipedia.org/wiki/Octane_rating permalink fedilink source parent hideshow 2 child comments replies: [–] zod000@lemmy.dbzer0.com 3 points 3 months ago That was quite informative, thanks. I'd always wondered about the specifics and had never remembered to look it up. permalink fedilink source parent [–] bstix@feddit.dk 6 points 3 months ago Yes. USA, Canada and Mexico use a different rating. You need to add about 5 to get the same number on the more common RON scale. permalink fedilink source parent [–] SolSerkonos@piefed.social 4 points 3 months ago There's two primary ways to measure octane. RON and MON. Most countries pick one- specifically RON. The US and Canada average the two, for some reason. permalink fedilink source parent
[–] RandomStickman@fedia.io 26 points 3 months ago (1 child) In Canada, The United States, and Mexico, the advertised octane rating is the average of the RON and the MON, called the Anti-Knock Index (AKI). It is often written on pumps as (R+M)/2. AKI is also sometimes called PON (Pump Octane Number). Because of the 8 to 12 octane number difference between RON and MON noted above, the AKI shown in Canada and the United States is 4 to 6 octane numbers lower than elsewhere in the world for the same fuel. There's a table in the wiki article that shows the equivalence of different systems https://en.wikipedia.org/wiki/Octane_rating permalink fedilink source parent hideshow 2 child comments replies: [–] zod000@lemmy.dbzer0.com 3 points 3 months ago That was quite informative, thanks. I'd always wondered about the specifics and had never remembered to look it up. permalink fedilink source parent
[–] zod000@lemmy.dbzer0.com 3 points 3 months ago That was quite informative, thanks. I'd always wondered about the specifics and had never remembered to look it up. permalink fedilink source parent
[–] bstix@feddit.dk 6 points 3 months ago Yes. USA, Canada and Mexico use a different rating. You need to add about 5 to get the same number on the more common RON scale. permalink fedilink source parent
[–] SolSerkonos@piefed.social 4 points 3 months ago There's two primary ways to measure octane. RON and MON. Most countries pick one- specifically RON. The US and Canada average the two, for some reason. permalink fedilink source parent
