Oil warm up time (not as slow as you think).

[Uncle Bob]

Originally Posted by angman

Thanks for the quick replies guys. I always thought that I needed to idle the car in order warm it up.

It's a very common misconception!

[MNBoxster]

Hi,

I agree that under temperate conditions above 40°F that 30 sec. is usually enough time to float the crank and get the oil flowing and the pressure up and stabilized. Below this temp, I'd give it a little more time.

But, you want to keep the revs down, not so much until the coolant comes up to temp, but for the tranny and tranny fluid to warm up. This is a much more viscous fluid and needs more time to heat up and flow than engine oil. Also, it's hard on the synchros to slam them when they're cold, shift with some delay, don't force the shifter. Using the coolant temp is probably a pretty good gauge as to when the tranny is fully warmed up. Hope this helps...

Happy Motoring!... Jim'99

[Brucelee]

Jim is dead on!