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Why did the EPA phase out the use of leaded gasoline?

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The problems that are associated with the use of leaded gasoline: it is toxic and it contains lead


leaded gasoline was the fuel of choice for most people.


Immediately serious damage will be done. Why in the world would you want to use leaded fuel which you cannot even buy in the U.S. Where are you getting leaded fuel and why?


Leaded gasoline has been illegal to sell for use in licensed street driven vehicles in the US since January 1, 1996. Leaded gasoline is restricted to two uses in the United States: Sanctioned Racing Events and Aviation...Older cars can use unleaded Gasoline but you may have to richen the mixture some to maintain the same performance and If your vehicle is older than 1970 you may have to install hardened exhaust valve seats or use a lead substitute which is added to the gas tank.. Vehicles that used leaded gasoline had a lower rate of part replacement for such things as valves,rings and pistons,also there was less wear on the cylnder walls,this was because the lead in the gasoline acted as a type of lubricant.. There are several brands of lead substitutes which are synthetic and safe to use if you have an older car that needs leaded gasoline these are available at most all parts/automotive stores..


A leaded gasoline is one that has a lead-containing compound in it. For many years the number one anti-knock agent was tetra-ethyl-lead. After epidemiological research showed that the lead dust coming from car exhausts was a major cause of lowered intelligence in children the use of this chemical was quickly phased out. The use of any lead compound in gasoline has been a Federal offence for some years now. Leaded gasoline is still available as a high octane aviation gasoliine.


Aeroplanes use aviation gasoline (high octane leaded gasoline), Jet A or Jet B (essentially low sulfur kerosene)


All '60s era vehicles used leaded gasoline. Unleaded requirements are a product of the '70s era Pollution Controls.


That car is designed to use the regular leaded gasoline not the premium gas.


Gasoline used to contain lead, which is poisonous to just about everything, and can cause damage to some car parts such as catalytic converters. Therefore, it is now illegal to use leaded gasoline, and so all gasoline is unleaded.


It depends what you mean by 'better'. Lead used to be added to gasoline to stop pre-ignition or detonation (which causes engine knock or 'pinking') but it was found to have very bad side effects environmentally and physiologically. most countries have banned the use of leaded gasolines, and modern gasoline have other ways of dealing with detonation. so i guess, unless you like bad air and bad health, unleaded is best.


Usually they run alchohal, but in dirt trak cars, they might use regular gasoline. It depends on the racecar; Nascar cars use 110 octan leaded gasoline, Indy cars use pure methanol, and Drag cars use Nitro methan.


The Spitfire uses high octane leaded petrol (gasoline). -What the Royal Air Force calls Avgas 100/130.


That motorcycle originally burned leaded gas. You can safely burn unleaded in it. I believe the manual say 93 octane.


a leaded engine requires you use gasoline with a lead additive which helps stop knocks and pings but is very hard on the environment, but on the plus side the leaded fuel would actually lubricate your valves and other fuel system components like the floats in the carburetter a non leaded uses fuel with different types of additives which believe it or not still contains a small amount of lead


Since leaded fuel is no longer readily available at most all gas stations, you may have to use an additive. Proper leaded fuel is a little bit better for your engine than non-leaded additives, but hard to get and quite expensive. An additive like Tetraboost adds the lead to unleaded gasoline with lead-scavengers. All vehicles sold in the US from 1971 on are made to run on unleaded gasoline, so there is no need for an additive in your 78 unless you have an older unconverted engine in it. It should run fine on very low octane fuel.


Will a drop of gasoline cure a toothache ? YES : A little white gasoline held in the mouth over the sore tooth will relieve the pain. Now, you must be careful here. Leaded gasoline is poison, and you must not ever use that. Most gasoline today is unleaded and it will be safe to use. It must not be swallowed. Just hold it over the tooth until the pain stops, spit it out, and rinse your mouth out good with warm water.


Leaded fule has real lead in it, because the valves or piston rings needed this extra lead for lubrication. Usually it is older cars that use leaded fuels, such as cars made before 1996. Any vehicle equipped with a catalytic converter cannot use leaded fuel.


YES ::: A little white gasoline held in the mouth over the sore tooth will relieve the pain. Now, you must be careful here. Leaded gasoline is poison, and you must not ever use that. Most gasoline today is unleaded and it will be safe to use. It must not be swallowed. Just hold it over the tooth until the pain stops, spit it out, and rinse your mouth out good with warm water.


Yes. Due to a 1990 EPA mandate, all gasoline in that market will be RFG and may also be oxygenated. More info: http://www.epa.gov/OMS/rfgvehpf.htm


Gasoline vapor is composed of gasoline molecules in the gas phase. Whatever the molecular mass of gasoline is in the liquid or solid phase, it is the same in the gas phase. Octane, C8H18, is the primary hydrocarbon in gasoline, We can use octane to answer this question. The molecular mass of C8H18 can be determined by multiplying the subscripts for C and H by the atomic weight of each element and adding the results: (8 x 12.011 u) + (18 x 1.008 u) =114.232 u


The mixture known as gasoline, when used in high compression internal combustion engines, has a tendency to ignite early (pre-ignition or detonation) causing a damaging "engine knocking" (also called "pinging" or "pinking") noise. Early research into this effect was led by A.H. Gibson and Harry Ricardo in England and Thomas Midgley and Thomas Boyd in the United States. The discovery that lead additives modified this behavior led to the widespread adoption of the practice in the 1920s and therefore more powerful higher compression engines. The most popular additive was tetra-ethyl lead. However, with the discovery of the environmental and health damage caused by the lead, and the incompatibility of lead with catalytic converters found on virtually all US automobiles since 1975, this practice began to wane in the 1980s. Most countries are phasing out leaded fuel; different additives have replaced the lead compounds. The most popular additives include aromatic hydrocarbons, ethers and alcohol (usually ethanol or methanol). In the U.S., where lead was blended with gasoline (primarily to boost octane levels) since the early 1920s, standards to phase out leaded gasoline were first implemented in 1973. In 1995, leaded fuel accounted for only 0.6 % of total gasoline sales and less than 2,000 tons of lead per year. From January 1, 1996, the Clean Air Act banned the sale of leaded fuel for use in on-road vehicles. Possession and use of leaded gasoline in a regular on-road vehicle now carries a maximum $10,000 fine in the United States. However, fuel containing lead may continue to be sold for off-road uses, including aircraft, racing cars, farm equipment, and marine engines until 2008. The ban on leaded gasoline led to thousands of tons of lead not being released in the air by automobiles. Similar bans in other countries have resulted in lowering levels of lead in people's bloodstreams.[8] [9] A side effect of the lead additives was protection of the valve seats from erosion. Many classic cars' engines have needed modification to use lead-free fuels since leaded fuels became unavailable. However, "Lead substitute" products are also produced and can sometimes be found at auto parts stores. Gasoline, as delivered at the pump, also contains additives to reduce internal engine carbon buildups, improve combustion, and to allow easier starting in cold climates. In some parts of South America, Asia, Europe and the Middle East, leaded gasoline is still in use. Leaded gasoline was phased out in sub-Saharan Africa with effect from 1 January, 2006. A growing number of countries have drawn up plans to ban leaded gasoline in the near future.


Autos made within the past 25 years or so have a fuel filler opening that only permits the insertion of the small unleaded gasoline nozzle, if that is the required fuel for your auto. The larger nozzles of leaded gasoline (still used in airplanes) and diesel will not fit. Use of leaded gasoline in modern automobiles causes the catalytic converter to malfunction and fouls the spark plugs. This, in turn, alters the operation of the engine in ways that can rapidly lead to damage. Rapidly, in this case, can mean as little as fifteen minutes. Even if the engine is undamaged, it will cost hundreds of dollars to replace the catalytic converter.


the 69 used leaded fuel, you can get the heads redone and have hardened valve seats installed and you can use unleaded with no problem.


Most older engines required leaded gasoline due to looser tolerances and lesser quality ring and cylinder materials. The lead being a soft material acted as a buffer between moving parts and protected metal parts in the engine. Modern engines have very tight tolerances, better quality metal alloys, better oil control, and use higher quality lubricants thus do not need this added protection. Leaded gasoline also emits more harmful gasses into the atmosphere (bunny huggers rejoice!).


try a mixture of half leaded and half turpentine substitute i used to use leaded, but then decided to give unleaded a shot, works better for me, and had the engine checked.. No damage



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