| Understeer |
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This occurs because of front axle tyre slip and which moves this part of the vehicle toward the outside of a curve. It usually happens in vehicles with front wheel drive when they begin to take a curve and while accelerating in the middle of a curve. It is corrected by slightly reducing the power that the tyres transmit to the ground.
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| Unijet |
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Systems of direct fuel injection at high pressure which is used on the versions turbodiesel engines. They are characterized by increased power. fuel economy and lower sound levels on diesel engines. According to the producer of the vehicle it has a different name: common rail. HDI. and so on.
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| Unitary cylinder capacity |
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This is the volume of each cylinder separately which if multiplied by the number of cylinders. yields the displacement or total cylinder capacity.
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