I AM purchasing a new Proton Persona Elegance 1.6 and I have a
1.Is it true that a brand new car should not be driven above
a certain speed ? If it's true, what would that speed be and
until how many kilometers of mileage chalked up before it could
be driven above that speed ?
2. Is it true that the car's air conditioning should not be
switched on when the engine has just been started, especially
after a long period, ie. overnight ? If it's true, when is it
good to switch on the air conditioning ? What effect is there on
the car if the air conditioning is switched on together with the
1. It is usually recommended that one should not
unnecessarily revs the engine or pull maximum revs up till the
second service of a car. This is to enable the engine parts to
bed down and wear evenly. Having said that, all modern engines
are already bench run and even dyno checked at maximum revs
before being put into your car and therefore the so called
"running-in" need to to be too gentle.
2. There is nothing wrong with leaving the air conditioning
on all the time and starting the engine with the compressor
connected. On maximum load, the compressor only pulls about 5
bhp and it is well within the capability of the starter motor to
stat the engine even with the load of the compressor.