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Originally Posted by kstateskier  Forgive me as I'm no mechanic but how can letting it idle be hard on it? |
Letting it idle is not hard on it, starting it is, and not getting it fully warmed up is.
An article I read a while back said that up to 85% of all engine wear happens in the first 5 seconds of start up, and that number goes up if the engine has been setting for any length of time.
Cold heavy oil, that has had lots of time to run off the cylender walls, equals advanced engine wear at start up.