does higher octane gas last longer

Best answer


Sadly,there’s nothing in premium gasoline that would make it last longerthan other fuels from the pump. Since the distinguishing feature is the higher-octane levels,the only real benefit you gain is lowering the chance of engine knocking,which isn’t much of a threat on most modern fuel systems.

People also ask


  • Does higher octane gas make your car run better?

  • You may think that buying the higher-octane, or premium, gas is better for your car and will make it perform better. This is a common belief, probably based on the commercials selling gasoline.

  • How long does 93 octane fuel last?

  • As a result of the further refinement and stable hydrocarbons, 93 octane fuel can last up to nine months when properly stored. Nine months is a significant increase from 87, which lasts about three months.

  • What Octane is best for fuel stability?

  • It鈥檚 important to quickly review what octane is to dive deeper into fuel stability issues. At most gas stations throughout the US, octane ratings are typically presented as a number, 87 to 93. This number is the AKI (Anti-Knock Index).

  • What does the octane rating mean on a gas car?

  • This rating determines how likely it is for engine combustion to occur at the wrong time, which can be a potential hazard in some vehicles. Any gasoline at 87-octane is safe by EPA standards, but higher-grade levels of gas have a much less likely chance of this occurring, which can cause pre-ignition, also known as engine knock.

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