Quote Originally Posted by Picard View Post
sa manual ko, nakalagay, warm-up by driving. Tapos may section din na never let a cold engine idle for more than 10 mins, and no more than 20 mins for a normal operating temp engine.
Actually that is what also is stated in the Rav's manual (I just checked it AGAIN this morning)... "warm-up by driving and not by idling".


Quote Originally Posted by Memphis Raines
In regards that long idling can inflict harm to an engine, i don't believe that it can, at least not with todays engines.
There's also a special note in my car's manual not to idle the engine for more than 40 minutes as it might damage the 3-way catalytic converter.

Long idling also shortens your sparkplug's (for those that are using non-iridiums) life. This was specifically stated in our 323's manual wherein we had to replace the plugs if it regularly experiences long idling conditions.