If you are renting a cheap used car make the
following test: Turn on the car and make a normal route using
all the transmission points, to evaluate aligning, direction,
brake and eventual noises, especially in the tires axes. At the
end of this route and in a fresh place with no contamination,
with the engine still running, close all the windows and verify
during some minutes that there is no smoke or burnt oil odour.
Test the fan in all positions, but always with doors and windows
closed. If you smell smoke or burn oil odour inside the car
(even just a little bit) DO
NOT ACCEPT this car.
When you drive a car in this condition, you are
exposed to a high risk and your health is in danger. If you
breathe these smokes and gases constantly during a long period
they may cause severe problems to your lungs like emphysema or
even cancer. (An average Canadian driver stays 300 hours per
year in his vehicle) Keep in mind that during the winter season,
with temperatures below 0 °C, usually you cannot lower the
window glasses of your car, and there is no air an oxygen change
within the car.
This problem is common
in cars that, even with low kilometres, were exposed to bad
driving, long continuous journeys or used in very congested
cities, with long periods of over warming of the engine.