However, if your engine is rated for high-octane fuel, then always fill it with premium gas to prevent pinging and knocking.

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At gas stations, the number displayed on the black and yellow backgrounds show the octane rating of the given fuel. Here, we are going to discuss what fuel classifications that exist in the US and what their octane rating is.

High-performance vehicles have engines with high compression ratios. And to complement it, you need to use fuel with a higher octane rating (premium gas). Similarly, when you operate a regular engine where compression value is not that high, gas with an octane rating below 90 can burn without causing knocking.

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But it is still unclear why there is a need to grade fuel in this manner in the first place. What do these numbers mean?

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During the 2021 Maryland Legislative Session, the Maryland Public Information Act (MPIA) was amended to allow prosecutors to release “Do Not Call” List information publicly. The law, known as Anton’s Law, was enacted on October 1, 2021.

So, why do different engines need fuel with different octane ratings? Fuel with a higher octane number can withstand the high compression values of the piston cylinder. This prevents your fuel from igniting prematurely. The problem of engine knocking comes up when the fuel-air mixture combusts before the prescribed compression value.

“As State’s Attorney, my priority is to obtain justice fairly and equitably for everyone involved. Taking the time to review the prior administration’s ‘Do Not Call’ List and make the necessary updates to ensure accuracy is an essential step in my mission of transparency for the State’s Attorney’s Office,” said State’s Attorney Ivan J. Bates. “Undoubtedly, our officers put their lives on the line daily to shoulder the immense responsibility of keeping our communities safe and helping residents in need with honor and integrity. The few in uniform who gamble with the credibility of their department and the integrity of my prosecutors’ cases must be identified for the sake of accountability. I do not take the obligation of assessing the credibility of each and every witness on behalf of the state lightly, and the republishing of this list is evidence of that.”

Below, we addressed this misunderstanding by differentiating between fuel grades and the implications they have on your car’s engine:

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However, that’s not the case at all. The performance of your car engine is not correlated to the type of fuel that you use.

The above discussion has made it clear that the fuel grading by octane rating is essentially done for the prevention of engine knocking, which indirectly improves an engine’s performance. So if your engine is designed to undergo optimal internal combustion with regular gas that has an octane rating of 87, using premium gas is a waste of money.

Regular, plus and premium gas are not just different in their prices, but also in their content. They have different octane ratings with the premium being the highest and regular being the lowest. Due to the extensive and often misleading marketing by fuel companies, people consider premium gas as some sort of magic potion for their cars that could improve its performance.

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Car manufacturers typically tell buyers what octane rating their car should take. The majority of vehicles running on gasoline are designed to get going on regular gas (octane rating of 87). High-performance vehicles, on the other hand, usually need plus and premium fuel.

Baltimore City State’s Attorney Ivan J. Bates republished the “Do Not Call” (DNC) List on the Office of State’s Attorney for Baltimore City’s (BCSAO) website, building upon his continued mission to ensure a transparent and accountable city agency. The DNC List includes those police officers who have engaged in conduct that renders their potential testimony in court unreliable or non-credible.