The alkyl lead compands found in gasoline can reduce the toxicity of exhaust by removing these compands when they are used in certain modern catalysts type engines. Unled gasoline is not more toxic than lead but, keep in mind if unled gasoline that is not supported by catalysts it may increase the risk of toxic intake...
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Some countries are using aromatic or olefin octane-improvers to replace lead compunds octane-improvers to reduce the lead intake for health reasons. According to researchers using aromatics will increase 40%, where other countries using a high octane unled fuels will increase up to 50% when using oxygenates...
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Hybrid Car Pros & Cons Being that the hybrid car has two engines, it is also more expensive than a gasoline powered car. Hybrids tend to range anywhere from $3,000 - $8,000 more per vehicle than a gasoline powered car...	2 / 392
Alternative Fuels Although they still use gasoline, it uses less gas than a regular gasoline powered vehicle. There are also controversies with hybrid vehicles such as it being too quiet for blind people to hear...	2 / 311
The Efficiency of Hybrid Cars When a standard gasoline car brakes the wheels are merely dragged to stop turning freely. This friction effect causes the same form of heat found in hybrid cars; however this heat is dispelled into the atmosphere instead of being turned into useable energy...	3 / 621
Hybrid Cars They are priced only about $1000-$3000 more than a regular car, and some states, like California, give a $2000 rebate on hybrid cars. I think hybrid vehicles are going to get very popular as the cost of gas goes up in the next few years, and I definitely should think about getting one when I can drive...	2 / 348