October na so all of the cars basically have undergone smoke emission tests. Butyou can still see cars, motorcycles, trucks, buses, jeeps, taxis, diesel or gas, emitting black, blue or white smoke. Sure, sabi ng iba it is normal to have a puff of smoke especially sa diesel pag galing nila sa full stop. Pero marami pa rin diyan that emits smoke while running.

2nd, I noticed that even if the vehicle passed the smoke test, meron pa rin usok lumalabas. I noticed that with my diesel cars that passed (properly, walang daya). But some other diesels on the same make doesn't emit as much smoke. Is there something wrong with our cut off scores? Is it too high?