Petrol in heavy duty buses ?!?? Forget it !
What kind of chickenfeed torque output can a petrol engine of the
same cc output ?!?? The power output may seem (shallowly)
impressive BUT the torque output would greatly disappoint &
especially in heavy weight vehicles like 16t GVW bus, where torque
is of much higher priority than mere power output.
If it's a mini-bus, car or motor-cycle then only torque is of
lesser significance.
In a diesel vehicle although the visible black particulate
emissions may seem more obvious among some vehicles, it cannot be
forgotten that among petrol vehicles (especially the many smelly
motor-cycles !!) these also emit overall just as much if not more
harmful emission/irritants/health risks !!!!
Trouble with petrol emissions is that just because it tends to be
more colourless many people (especially those who don't know much
about automobiles !) tend to think that because they seem to see
less pollutants coming from the exhausts of petrol vehicles these
have to be 'cleaner' than diesel vehicles ! That tends to be
shallow minded myths instead !
Because in overview, petrol pollutants tend to be less visible but
just as if not more harmful to both humans & the atmosphere in
their own ways !
Therefore, seeing beyond the shallow horizon, to be most safe, it
has to be assumed that (barring any new technical
breakthru/discovery etc.) BOTH petrol & diesel vehicles emit
OVERALL just as much pollutants in their own different ways. Diesel
vehicles seems more 'honest' in making their emissions more obvious
to the eye while the petrol vehicles seem to prefer to 'hide' their
emissions from one's eyes instead, that's about it ! Of course the
pollutants are still there, more invisible that's all !
Anyway i'll most certainly (of course) stick with a modern Euro-4
diesel bus with fuel-additive technology or Euro-5 version over any
petrol or natural gas etc. ! All things considered, diesel
over-rules not just in trucks & buses & coaches but also
increasingly in vans & modern cars !
