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Tata Indicab - Tata Motors Customer Care

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STARTING & DRIVING<br />

Driving <strong>Tata</strong> Indica Diesel / Petrol Cars<br />

DIESEL & PETROL ENGINE :<br />

The combustion systems of the petrol engine & diesel engine<br />

are totally different. While the former makes use of the spark<br />

ignition, the latter uses compression ignition type. Due to the<br />

difference in compression ratios, cylinder pressure and combustion<br />

cycle the performance characteristics of both the engines differ<br />

greatly, even if the final power out put is the same.<br />

Therefore, if the diesel car is driven in the same fashion as the<br />

petrol car the response of the car will be entirely different for<br />

equal capacity engines.<br />

Power (Kw)<br />

80<br />

60<br />

40<br />

20<br />

ENGINE PERFORMANCE<br />

CHARACTERISTICS :<br />

c Diesel<br />

c Petrol<br />

0<br />

0 2000 4000 6000 8000<br />

Engine (RPM)<br />

Power(P)<br />

Power(D)<br />

Torque (Nm)<br />

120<br />

100<br />

80<br />

60<br />

40<br />

20<br />

0<br />

c Petrol<br />

c Diesel<br />

0 2000 4000 6000 8000<br />

Engine (RPM)<br />

Torque(P)<br />

Torque(D)<br />

68

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