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Nov 17, 2022 · The higher an octane number, the more stable the fuel. Retail gasoline stations in the United States sell three main grades of gasoline based on the octane level: Regular (the lowest octane fuel–generally 87) Midgrade (the middle range octane fuel–generally 89–90) Premium (the highest octane fuel–generally 91–94)
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E10 is gasoline with 10% ethanol content. Most of finished...
- U.S. Energy Information Administration
U.S. Energy Information Administration 1000 Independence...
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- What Is Octane Rating?
- Which Gasoline Or Fuel Should I Put in My Car?
- What Is Flex Fuel?
- Understanding Diesel Fuel
- What Is Ethanol-Free Gas?
- Why Do Some Gasoline Types Cost More Than Others?
- Price Factors For Gasoline
- Does Gasoline Go Bad?
The octane rating on different grades of gasoline is a measurement of the fuel’s stability. Higher octane numbers mean greater stability. The greater stability indicates the gasoline’s resistance to preignition and the fuel’s ability to resist “knocking” or “pinging” during combustion. These sounds come from the air-fuel mixture detonating prematur...
The fundamental rule of car maintenance is to follow the manufacturer’s guidelines in the owner’s manual. It will show the minimum octane level for the vehicle and whether premium gas is recommended or required.
E85 is a fuel designed for “flex-fuel vehicles.” It is a blend of 51 – 83% ethanol and the balance gasoline. E85 pumps are clearly labeled at gas stations and typically have yellow nozzles. Flex-fuelvehicles usually have a yellow fuel cap. Using gasoline of any octane level in a flex-fuel vehicle is OK. However, putting E85 in a car that isn’t desi...
Diesel fuel is the common term for petroleum distillate fuel. Gasoline and diesel engines operate differently and use different types of fuel. Vehicles that use compression ignition engines use diesel fuel, while spark-ignited engines use gasoline. In general, diesel engines work more efficiently and provide greater torque, even though they generat...
Non-ethanol gas is gasoline that isn’t blended with ethanol. This type of gas isn’t sold at every filling station. Using pure gas can lead to better mileage. But increased fuel economy from using ethanol-free gas may be offset by its higher cost. Non-ethanol gasoline typically costs more than ethanol-blended varieties. Using non-ethanol gas in your...
A significant difference between grades of gasoline is the cost, and motorists often wonder why higher-grade options cost more. The additives used for boosting octane are generally more expensive to produce. At the time of this writing, the average price of regular unleaded in the United States is $3.67 per gallon, and a gallon of mid-grade costs $...
Many factors determine gasoline prices. Drivers often see higher prices in the summer driving season. Supply from refineries and demand from vacationing motorists can add up to 15 cents per gallon to gas prices in the summer months. Additionally, seasonal gasoline blends found at the pump contribute to price differences from one season to the next....
The volatile compounds of gasoline naturally degrade over time, and the combustibility of old gas decreases, even when properly stored. Gasoline can go bad from contaminants such as dirt and rust. Old gas may be refreshed to usable condition by mixing it with a high ratio of fresh gasoline. Do not use contaminated gas to power any equipment because...
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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). Gasoline with an octane rating of 85 is available in ...
The large number on the yellow gasoline pump octane label is the minimum octane rating. The (R+M)/2 Method you see on the label refers to the average of the Research Octane Number ( R ON) and the Motor Octane Number ( M ON) ratings. To determine the RON, the fuel is tested under engine idle conditions with a low air temperature and slow engine ...
United Kingdom: 'regular' gasoline has an octane rating of 95 RON, with 97 RON fuel being widely available as the Super Unleaded. Tesco and Shell both offer 99 RON fuel. In April 2006, BP started a public trial of the super-high octane gasoline BP Ultimate Unleaded 102, which as the name suggests, has an octane rating of 102 RON.
Regular unleaded is the lowest octane of fuel, usually around the 87-octane level, and it is suitable for most cars. Mid-grade is, as the name suggests the middle-range of fuel, typically at the ...
Mar 30, 2016 · Octane is a gasoline additive that is needed for the proper functioning of modern engines. Octane sources have taken many forms throughout the years, both renewable and petroleum-based. They include lead, methyl tertiary butyl ether (MTBE), benzene, toluene, ethyl-benzene and xylene (BTEX), and ethanol (a biofuel).
