Quote Originally Posted by niky View Post
Driving short distances in traffic is bad for the oil. It can cause premature engine wear if you don't religiously follow oil changes. For sensitive engines (i.e.: those with tight tolerances like the Altis, or those with pretty loose tolerances, like some old diesel engines), you might want to change oil sooner than 5000 kilometers if you always drive in traffic.
How is driving short distances in traffic bad for the oil? Can you give us references or the technical explanation, please?

I think that driving short distances within a short period of time is WORSE than driving short distances in traffic where the oil gets to reach normal operating temp. Am I right?