All states require gas pumps to be labeled with the correct octane level and nearly all states do regular testing to make sure gas stations are in compliance. A minimum 82 octane fuel is recommended for most vehicles produced since 1984.

An octane rating, or octane number, is a standard measure of a fuel 's ability to withstand compression in an internal combustion engine without causing engine knocking. The higher the octane number, the more compression the fuel can withstand before detonating.

2022年11月17日 · What is octane? In recent years, car manufacturers have been requiring or recommending premium gasoline (a high-octane grade of fuel) for use in more of their vehicle models. The difference in prices between premium and lower octane grades has also increased. Octane ratings are measures of fuel stability.

We'll break down the basics of octane ratings, dispel some common myths, and help you make informed decisions every time you are at the pump for refueling. And on the way, you will also...

2024年6月11日 · Octane is a rating that appears over the different fuel grades at gas station pumps. In most cases, regular octane fuel has an octane rating of 87, while mid-grade fuels are rated 89-90 and premium is rated 91-94. The term "octane" refers to a fuel's "knock" resistance.

Octane rating is the measure of a fuel's ability to resist "knocking" or "pinging" during combustion, caused by the air/fuel mixture detonating prematurely in the engine. In the U.S., unleaded gasoline typically has octane ratings of 87 (regular), 88–90 (midgrade), and 91–94 (premium).

2023年9月28日 · Every time I fill up a car at the gas pump, I’m met with three different fuel choices with varying levels of octane: 87, 89, and 93 (or 91/92). These different octane levels are usually labeled “Regular,” “Plus,” and “Premium, respectively.

2023年8月14日 · When pulling up to the pump, you are often faced with an array of fuel choices that are graded and priced differently. The number you see next to each type is its octane …

Most of the time, a standard production vehicle will require a low octane fuel at the gas pump. However, it is always a good idea to make sure you are buying the right fuel for your car.

The octane rating at gasoline pumps is the average of two different values: A Research Octane Number (RON) and a Motor Octane Number (MON). The RON is determined at a low engine speed of 600 revolutions per minute, while the MON number is determined at a high engine speed of 900 revolutions per minute.