I have a feeling that all of the pumps are really pulling from the same tank. I've only ever noticed one place for the gas to come out of the trucks that deliver the gas; I don't see how multiple grades of gas could be delivered by one truck.
2007-02-18 06:20:51 · 4 answers · asked by Jim 7 in Cars & Transportation ➔ Other - Cars & Transportation
The *real* difference is in the octane rating, which indicates the ability of the gasoline to resist engine 'knock' (or 'pinging') under certain conditions. Tankers which deliver fuel to gas stations carry different blends in different compartments.
If your car has a high-output engine (such as a turbocharged or high-compression engine) and you are sensitive to engine performance and fuel economy, you will likely know that your engine performs differently when you use a lower octane than recommended for your car. Conversely, you're wasting money by using an octane rating higher than what your car requires. A decade or longer ago when only some cars were fuel injected, only the premium grades of gas had the various additives (such as Chevron's "Techron") which help keep injectors clean. These days, nearly all blends of gas have adequate levels of such additives, so with premium gas you're paying nearly exclusively for the higher octane.
2007-02-18 06:47:23 · answer #1 · answered by Gary S 2 · 1⤊ 0⤋
The only REAL difference is the octane level. Most cars require 87 octane, but some performance vehicles require a higher octane level.
The gas companies would have you believe that they only put additives in their higher octane fuels, but under provisions of the Clean Air Act ALL gasoline sold in the U.S. is required to contain deposit control additives. They may have a different blend, but it won't really be much of a benefit over the regular unleaded instead of premium. The higher octane level over what your vehicle manufacturer recommends for your car is a complete waste of money and it will not make your car run any better (sometimes it can even create more problems, some Dodges had a TSB for poor running due to higher than recommended octane levels)
The gas stations usually have 3 separate tank openings very close together that run to different tanks underground (regular, premium, diesel) the midgrade is simply a mix between regular and premium to achieve the mid grade octane (mixed at the pump, pulling from regular and premium tanks). They're close together so the tanker truck can park in one spot and fill all the tanks up without having to move.
2007-02-18 08:53:37 · answer #2 · answered by Mark B 6 · 1⤊ 0⤋
It has to do with the amount of octane, additives and cleaners in the various different fuels. One truck one type of fuel going into one separate tank for each grade of fuel. The price difference is unjustified. It should only be a few cents difference from low to high octane fuel. The higher the octane rating the better the combustion the better the fuel economy.
2007-02-18 06:30:30 · answer #3 · answered by ? 7 · 1⤊ 0⤋
the foremost distinction is that in case you utilize a decrease octane that your automobile demands it ought to reason engine knocking or ping. utilising an more suitable octane automobile than your automobile demands does virtually no longer something. ninety 3 does no longer get to any extent further valuable mileage than 87 in a automobile that demands 87. In an answer, NO that is no longer worth it to purchase ninety 3 for any reason, exceedingly at immediately's expenses.
2016-11-23 16:57:30 · answer #4 · answered by Anonymous · 0⤊ 0⤋