Ford says only 5-10 seconds to warm up their cars.
#11
Still should be a little careful about how hard you drive of from a dead cold start.
Having sufficient lubrication is one thing. Avoiding differential expansion between things fitted to close tolerances is a somewhat different animal. Warm it up with some sense of what's happening inside.
I'd guess that Ford is reasonably confident about 5 - 10 seconds with respect to the warranty rate spread out over the entire fleet as a statistical average thing. Anybody's individual car is not a statistical average; it really is either "pass or fail". What you do get to choose is how hard and how soon you drive, with respect to how high your own individual risk tolerance happens to be.
Norm
Having sufficient lubrication is one thing. Avoiding differential expansion between things fitted to close tolerances is a somewhat different animal. Warm it up with some sense of what's happening inside.
I'd guess that Ford is reasonably confident about 5 - 10 seconds with respect to the warranty rate spread out over the entire fleet as a statistical average thing. Anybody's individual car is not a statistical average; it really is either "pass or fail". What you do get to choose is how hard and how soon you drive, with respect to how high your own individual risk tolerance happens to be.
Norm
Last edited by Norm Peterson; 02-18-2010 at 06:36 PM.
#13
I wait until the rpms start dropping. Then I drive, but even then I drive it pretty easy, shifting at 2000-2500 until the car is up to normal temp.
Who wants to beat their car to its limit anyway? I say take whatever reasonable measures you can to keep the engine safe.
Who wants to beat their car to its limit anyway? I say take whatever reasonable measures you can to keep the engine safe.
#16
Although the RPM's drop anywhere from 5-60 seconds, the engine takes about 20 minutes to fully warm up, so no beating on her on my commute to work. Not even on the way back. :/