Octane rating is the rating given to combustable fuels that shows that fuels resistance to detonation. detonation is also known as knocks. knocks are VERY bad for an engine and efficiencies aswell, because it is simply the fuel going off before it is supposed to (premature combustion). the higher the octane rating (the pump's octane is an average of two different methods of obtaining the octane number) the more resistant the fuel will be to knocking. higher octane fuels WILL NOT increase your fuel economy, if you have observed that such is not the case, then there is another factor that needs to be considered when comparing the high and low octane fuels in your driving regemine.
Talk2DIY Automotive - 1986 Octane Ratings and Electrical was released on: USA: 16 September 2003
As of my last update, brands like Shell, Chevron, and BP often offer premium gasoline with octane ratings of 91 to 93. However, some locations may have specific fuels labeled as "higher octane" or "racing fuel" with octane ratings exceeding 100, typically found at specialty retailers or racetracks. It's always best to check local stations for the specific octane ratings they offer.
High Octane Detonate - 2005 V is rated/received certificates of: Australia:M
High Octane 4 - 2003 V is rated/received certificates of: New Zealand:M
High Octane Overboost - 2004 V is rated/received certificates of: New Zealand:PG
High Octane 3 - 2002 V is rated/received certificates of: New Zealand:M
High Octane 2 - 2001 I V is rated/received certificates of: New Zealand:M
The three most common octane ratings at gas stations are typically 87, 89, and 93. The 87 octane is considered regular unleaded fuel, while 89 is often referred to as mid-grade. The 93 octane is labeled as premium fuel, designed for high-performance vehicles that require higher compression ratios for optimal engine performance. Some stations may also offer 91 octane as an alternative to 93.
Common octane ratings of gasoline sold at the pump typically include 87 (regular), 89 (mid-grade), and 91-93 (premium). In the United States, 87 is the most widely used for standard vehicles, while premium fuels are recommended for high-performance engines. Some stations may also offer specialized fuels with higher octane ratings for specific needs. Always check your vehicle's owner manual for the recommended octane level.
It's not that simple. To keep things simple, though - use fuel with the octane rating that your car's instruction manual says you should.
The measure of antiknock properties in a fuel is typically expressed using the octane rating system. Higher octane ratings indicate better antiknock properties, meaning the fuel is less likely to cause knocking or pre-ignition in an engine.
Octane is a hydrocarbon compound with the chemical formula C8H18. It is a component of gasoline and is used as a reference standard to measure the performance of fuels in internal combustion engines. Higher octane ratings indicate greater resistance to engine knocking or pinging.