What does the 9 in gas prices mean?
Gas stations can’t round down because their profit margins on gas are slim enough as it is. By one estimate, gas stations make only five cents per gallon in profit, so lopping off a cent is like giving away 20 percent of sales.
Why are gas prices listed in tenths?
“We have to go way back to when the oil companies were selling gas for, let’s say, 15 cents, and then the state and federal boards decided they wanted a piece of that to keep the roads going, so they added 3/10 of a cent.
What do the numbers in gas mean?
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)
Is diesel a kerosene?
Kerosene is a lighter diesel oil than #2, hence why it is designated as #1 diesel. Kerosene doesn’t contain very high levels of aromatic compounds; they typically get concentrated in the #2 and heavier diesel fuel oils. This is part of the reason kerosene burns drier, with less lubricity, than #2 diesel.
Can you burn old kerosene?
Do not store kerosene from season to season, especially left inside the kerosene heater over summer. Old fuel will break down and absorb water, encouraging growth of bacteria and mold. Burning old fuel will cause damage to your heater and lower performance. This can quickly become dangerous.
Why do planes run on kerosene?
Kerosene maintains a low viscosity during flights thanks to its low freezing point. This means it will keep the plane running as it should and won’t clog up the engine. Kerosene is much cheaper than gasoline, making it a more affordable option for airlines.
Is jet fuel a diesel?
Jet fuel is very similar to diesel fuel, and in some cases, may be used in diesel engines. A diesel engine may be more fuel-efficient than an avgas engine. However, very few diesel aircraft engines have been certified by aviation authorities.
What fuel do helicopters use?
Aviation kerosene
Can I use kerosene to flush my engine?
Flushing engine with kerosene gives very good results. Engine oil flush additives are basically kerosene too, put them in a glass bottle and compare.. However, there is one exception for the engine flush: high mileage cars.
Can you mix kerosene and diesel in a heater?
The good news is that it is safe to burn diesel in a kerosene heater. Diesel and kerosene are relatively close to one another. The main difference is that diesel burns a little cooler and will cause the wick to build carbon much quicker than kerosene.