336
[OC] Meanwhile.. in San Jose, California (lemmy.world)
submitted 6 months ago by to c/pics@lemmy.world
102 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[–] 2 points 6 months ago (6 children)

Whatever it is, my gasoline options are 95 and 100. That's it.

Still sounds like you're saying my options are 91 and 93 AKI or whatever. So the US 87 Regular is lower quality.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 6 child comments
    •
  • [–] 15 points 6 months ago (2 children)

    Octane rating has no bearing on the quality of the fuel lmao. It just runs better in engines that are designed to run it.

    Octane rating does not relate directly to the power output or the energy content of the fuel per unit mass or volume, but simply indicates the resistance to auto-ignition under pressure without a spark.

    https://en.wikipedia.org/wiki/Octane_rating

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •
  • [–] 1 point 6 months ago (1 child)

    Some engines will adjust spark advance by using the knock sensor, and when using a higher octane gas, will be more efficient. The gas is not more power dense, but it gets used more efficiently. If your car doesn't, then it's not better to use higher octane gas.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 1 child comment
    •
  • [–] 5 points 6 months ago (1 child)

    That sounds about right to me. Some places will sell 93 AKI/100 RON in the US, but it's not as common, and the only cars that actually require it are probably modified turbocharged cars. Most US commuter cars run perfectly fine on 87 AKI and it's significantly cheaper. I live in Washington so for some reason they sell 92 AKI gasoline, which is an oddball number I don't see anywhere else.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 1 child comment
    •
  • [–] 3 points 6 months ago

    So the US 87 Regular is lower quality.

    Octane rating has nothing to do with quality, it's just how fast the fuel burns.

    If you are buying higher octane without specific instructions from your vehicle manufacturer, you're getting scammed.

  • permalink
  • fedilink
  • source
  • parent