edkrob

how long do you have to warm a vehicle before driving
what happens if do not warm and drive

Binger

I've heard atleast 15 seconds, other wise the oil is not up in the heads so it can damage the valves, rockers, springs...etc...Especialy important when its cold out.

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niky

Warm it up for a minute or two, and drive it like a baby until the temperature is up to normal... DON'T REV IT HARD for the first five or ten minutes... you should be fine.

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Radioaktiv

like niky said

i always let it sit for at least 1 or 2 mins...then just keep it under 4k rpms until the temp gauge is up to normal operating temp

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Bonka

15-20secs. Below 2,500rpms until normal temp

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aza

5 to 10 mins or untill its al full op temp