Quote:
Originally Posted by Slysdexia
What do you mean by 'fully warm up', exactly?
I let it run for 30 seconds to let oil get where it needs to and let the cylinder temps come up to prevent acidic condensation and subsequent wear (combustion byproducts are acidic), then drive off fairly normally. I don't put the hammer down until I'm sure oil temps are up.
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Ive never done this on newer cars as onlyh 1-2 mins after start up I drive off but on older cars especially in colder weather I let the car idle as much as 5-10 mins until the temp gauge needle is at normal operating temps.
idk how much it affects newer cars considering they warm up faster than older cars but I assume even in very cold weather it will take a few mins to warm up but I may also let it warm up the same way as my older cars till the gauge is at normal operating temps mainly not just cuz of oil temps in normal range but usually with older motors like cast iron they are very brittle with cold and hot changes that are instant will lead to metal cranking as for aluminum the metal expands as temps rise idk how it plays into motor longevity via "full warm up" though