Quote:
Originally Posted by neal_2000
For all of you who think that idling your cars when its cold out until it warms up because its easier on the engine are wrong to think that. When you idle your car the crank shaft is moving too slow so it just sits on the lower crank bearings and wears them out. But when you drive at slightly higher rpms it will slightly lift up and center itself in the main bearings. This is the reason why police vehicles and taxi cabs have to get their engines rebuilt so often.
The best way is to (if you can) just start it up, and drive away accelerating at the slowest rate you can until its warmed up. Of course, if you have to jump on a freeway right away you would want to get it warmed up a little first.
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I would like to refute your argument. Police vehicles and taxis are rebuilt frequently "chronologically" because they put higher than average miles as service vehicles than a comparable commuter car. I commute 35 mins a day, cops use their car 8-10 hours a day. They're rebuilt at like 150-300k...