Technical College in data means the fuel efficiency of the heat capacity of the conversion of energy in the fuel into kinetic energy or work required if the car contained move. For a vehicle, fuel efficiency, the output means you get for a unit amount of fuel, such as “miles per gallon” or “litters per 100 km”. For you, just wasted fuel means less fuel and more money in their pockets. The automotive industry believed that by maintaining the air-fuel ratio of 14. 7:1 by electronic means, such as electronic fuel injection and electronic ignition systems, they already had the best combustion process that the best fuel economy guaranteed. Unfortunately this is not always the case because it is not known enough, but there are plenty of very ordinary driving situations, which functions as the engine is making steady at low speeds, which reduces temperature inside the combustion chamber. It’s that the stock plug operating results, too cold, which affects the combustion, because the low temperatures do not allow to completely burn the air / fuel mixture in the combustion chamber to raise. Have unburnt fuel wasted fuel and you paid for it. Wasted fuel is wasted money. These run very frequently or traffic conditions: • Steady-city traffic, where short distances and long idling or stop-and-go-there trip. • Advanced low-speed driving, or drive a short distance, or even drive in the freeway when the automatic transmission keeps the engine under 3000 rpm. • Low speed cruise. • At high altitudes, above 3000 m. • The weather, when the humidity rises. • In addition, these conditions can be combined in endless possibilities. And believe it or not, this situation is not the exception, in fact, almost the rule for more than 75% of cars worldwide. You can easily seen from the exits of the exhaust pipes in a parking area and confirm all around you. Most of them are covered with a dry soot from unburned fuel. And this is not due to an incorrect air / fuel mixture adjustment of the carburetor or fuel injection, even these in a well maintained vehicle pass, which only the smog test is satisfactory. This is because the stock spark plug is too cold for the operating conditions, ie they are no longer appropriate and will be replaced with another of spark plugs and hotter heat range. Why is it happening? because the heat range spark plug was the stock from the manufacturers in their laboratories and teorical differents speeds up and trips, was allegedly done by the potential target market, defined conceptually a gived model and type to buy the vehicle. But who in real life, not everyone has the same behavior still lives in the same geographical and under the same weather conditions, or drives in the same traffic conditions are not the same maintenance of their vehicles. Do you have any doubts? Just think for a minute, that traffic between a big city like LA is very different from a smaller city and a city. A teenager drives his mother and take it differently, unlike her husband, the other drives to his neighbors, pulling a trailer. In addition, from Alaska to Dubai, there are hundreds of different weather, altitude and humidity, and there are many different brands and grades of fuel including different conditions. It is therefore absolutely necessary, refining and adapting the selection of the best spark plugs for the real operating conditions of the engine to each driver behavior and / or any individual operating conditions. As you can see, it’s likely that you have heat value problems that affect your mileage account, even if you do not know that it exists, and you waste more fuel than necessary. To the best fuel economy in these very often, but rarely take into account driving conditions to achieve, you have different plugs and hotter than the original has to install, hit by manufacturers in their use in catalogs, at the right combustion chamber temperature to achieve the perfect guarantee combustion processes. But to define what exactly is the spark plug, the results of the best heat range is appropriate for your engine, a risky riddles and no easy task. Yet that is only by adjusting the selection of the heat of the plug-park area, the adaptation to your specific conditions will achieve top efficiency of your engine and thus ensures the best fuel economy, whit the best performance, performance, reliability and low emissions . Hard to believe? You did not take my words. Spark plug manufacturers have never not acknowledge explicitly that: ”A hot spark plug can be better over a longer idle or city type stop and go traffic.” AC Delco Spark Plugs ”A hot plug is better for longer idle and city travel.” Bosch Spark Plugs ”With spark plugs with a hot heat range for hospital transportation. SPLITFIRE Spark Plugs ”For short trips and stop-and-go driving is a hot plug is better.” DENSO Spark Plugs ”The spark plug heat range should remain the same, if not even in high altitudes (above 3000 m) in the switch to a hotter plug may be necessary.” Champion spark plugs. ”This is the increasing importance of precise adjustment of the spark plug automatically allocated against. Customized solutions are the need of the hour”. BOSCH Spark plugs
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