Engine
Power trains
Control system
Chassis and frames
By maintaining proper angle between tyres
Providing adequate lubrication
By applying grease on the steering controls
Providing proper brake adjustment
To increase the engine power
To reduce the fuel consumption
To enhance the fuel efficiency
To turn and control vehicle with less effort
To control the braking system
To increase the engine RPM
To guide the vehicle
To control the fuel system
Provide positive braking
Increase frictional power
Prevents skidding of vehicles
Reduce the brake failures