US petrol price fluctuations - Wikipedia
From 1998 to 2004, the price of gasoline fluctuated between $1 and $2 USD per U.S. gallon. After 2004, the price increased until the average gas price reached a high of $4.11 per U.S. gallon in mid-2008, but receded to approximately $2.60 per U.S. gallon by September 2009. More recently, the U.S. experienced an upswing in gas prices through 2011, and by 1 March 2012, the national average was $3.74 per gallon.
In the United States, most consumer goods bear pre-tax prices, but gasoline prices are posted with taxes included. Taxes are added by federal, state, and local governments. As of 2009, the federal tax is 18.4? per gallon for gasoline and 24.4? per gallon for diesel (excluding red diesel). Among states, the highest gasoline tax rates, including the federal taxes as of 2005, are New York (62.9?/gal), Hawaii (60.1?/gal), and California (60?/gal). However, many states' taxes are a percentage and thus vary in amount depending on the cost of the gasoline.
About 9% of all gasoline sold in the US in May 2009 was premium grade, according to the Energy Information Administration. Consumer Reports magazine says, "If (your owner?s manual) says to use regular fuel, do so?there?s no advantage to a higher grade." The Associated Press said premium gas?which is a higher octane and costs more per gallon than regular unleaded?should be used only if the manufacturer says it is "required". Cars with turbocharged engines and high compression ratios often specify premium gas because higher octane fuels reduce the incidence of "knock", or fuel pre-detonation. The price of gas varies during the summer and winter months.
What parts to choose our car?
Car repairs are not always as simple as it might seem, and sometimes they involve complicated procedures, the need to break down the car for parts and replacement of individual components. Some of them are quite cheap, the other obviously a lot more expensive, and in addition to the choice we have many manufacturers and various alternatives. Which one should choose for our cars? Ideally, of course, when we focus on these original, designed specifically for your vehicle, because in this way we ensure that they will work as it should. Everyone certainly knows perfectly well that they are slightly more expensive, but on the cars not worth saving. They should always be smooth and secure.
The consequences of the use of motor oil of poor quality
The reasons for the small car breakdown can be really mundane. Inexperienced drivers do not even realize this, how can they lead to a failure in his car. Meanwhile, the consequence of the use of motor oil of poor quality may be overheating or cooling of the engine, by which it will begin to function worse and worse, and eventually refuse to obey the driver. There should also save on oil brake, because its deficiencies in the car can lead to the fact that the brakes will react with a delay, and this situation is particularly dangerous for the driver and other road users. On the other hand, perhaps the largest number of drivers are aware of what may be the consequences of using old car tires.