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Is high octane gasoline better

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Anonymous

14y ago
Updated: 8/19/2019

Higher octane fuels are used for most luxury cars that run hotter to get more out of the engine. It is also used for older vehicles that cannot handle the gunk from lower octane fuels.

Added: The "experts" say that it is a waste of money to use high-octane premium fuel in those engines whose manufacturers do not call for it.

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Wiki User

14y ago

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Why high octane petrol gives more mileage?

High octane gasoline (petrol) only provides better fuel mileage in vehicles that require the high octane. In a normal engine running higher octane provides no benefit.


What is octane when talking about gasoline?

Octane refers to a sort of rating when talking about it in relation to gasoline. High octane rated gasoline can be compressed more tightly without spontaneously combusting.


What is octane number of a fuel?

Many car engines run on gasoline. If the octane is low, the engine will knock. If it is high, the engine will not knock, which means that sometimes it will make a knocking sound as you drive along. It also might keep running when you turn off the key to the car. With high octane, the engine also starts easier. It is more expensive to make high octane fuel. Lower octane fuel gets better milage. There are two organic chemicals: isooctane and heptane. Isooctane is a good fuel for cars. It is rated at 100 octane. Heptane is a bad fuel for cars. It is rated at zero octane. When gasoline is made, they need to make a certain octane. They put the gasoline in a car engine. They then run the car with a mixture of isooctane and heptane. They find the mixture that matches the batch of gasoline. That is the octane rating of the new batch of gasoline.


Which process is used to increase the amount of the gasoline fraction in refining to match commercial demand?

Catalytic reforming is the process used to increase the gasoline fraction in refining by converting low-octane hydrocarbons into high-octane gasoline components. It helps to meet the commercial demand for gasoline with better quality and higher octane ratings.


What is the difference in gas grades?

The grades gasoline are the different octane ratings, the cheapest gas has the least octane. The lower the octane in the gasoline, the faster it will burn. High performance cars need high octane fuel.


What is a sentence using the word octane?

That grade of gasoline has too much octane.


Does higher octane gasoline give you better gas mileage?

No. If your car runs well on a lower octane gasoline (i.e. no engine pinging or knocking), then putting a higher octane gas in your tank is just wasting money...


Why would a car engine run better with high octane gasoline?

It wouldn't necessarily run better at all - it all depends on your ignition and timing setup and compression ratio.


What octane do you need for a Hyundai tiburon?

Any. Tiburon engines do not require high-octane gasoline, although it never hurts.


What is the common name for octane?

The molecular formula of octane is C8H18. It doesn't really have a "symbol."The "octane" in gasoline is actually "iso-octane" or 2,2,4-trimethylpentane. It has the same molecular formula, but the atoms are arranged differently than in n-octane.


Guide number for gasoline?

The guide number for gasoline refers to the ignition quality of the fuel. It is indicated by the octane rating, with higher numbers indicating better resistance to engine knocking or pinging. Gasoline with a higher octane rating is typically recommended for high-performance or turbocharged engines to prevent knocking and improve overall engine performance.


Is it harder to ignite a lower or higher-octane gasoline?

It is harder to ignite higher octane gasoline - the octane rating expresses the compound's resistance to pre-ignition (often called "ping") Low octane fuels tend to 'ping' more than high octane fuels because they ignite more easily.