Step 5: 5. some mistakes about car efficiency tips
In carb engines, the theory is false, because carbs need an amount of fuel to get the car started, i mean, a rich mixture into the engine, to get a correct startup.
In an EFI engine, the theory is correct, because injectors, don't need that amount of fuel as carb engines need, the CPU constantly calcules the correct amount of fuel
But in real life is completely wrong, because the engine needs lubrication and if you're constantly starting and stopping, the contrast of temperature, of cold-hot-cold-hot, it affects to the engine durability, because happens the same thing as the desert, days are extremely hot, and nights extremely cold, that's the reason of the sand, the rocks crack, and crack again, making that "mini rocks" that's the sand.
That's one of the consequences.
Another is, if you start and stop the car, the piston is hot, because the heat of explosions, the piston expands, and needs the lubrication of oil to make a wall that separes the hot piston with the cold block. Ok, so what happens if you cut the oil flow inside your engine?
You're always see on winter people that get sticked his tongue in a frozen metal part when they lick them. In the engine happens somehow something similar, the piston is the tongue and the block the frozen metal, so you can throw away your engine, because the piston is welded to the block, and you can't do nothing for save it, even the cranckshaft, because as the repentine stop, the most probably is that the crankshaft breaks and make a very cool mess.
Well, as I say in step one, that's my first instructable, thanks for watching! all the comments, and constructive crytics are accepted ;)