Quote:
Originally Posted by mrquick68
I agree with all that's stated above, however...
These engines have electric water pumps and circulate coolant through the turbo(s) even after the engine is turned off. So, it's not like the old school days 100%. you no longer have coking issues in turbos anymore. It's still good practice to let your oil temps get up before any hard acceleration and the same goes for the last few blocks on the trip home (drive it easier before turning it off). But, i don't think its necessary any longer for prolonged idling for "cool down". They make the cars pretty dummy proof these days.
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I agree with this 100%
Out of habit i never let the tach get up pass 3K until the engine is warmed up and I usually stop all aggressive driving a few miles before i reach my destination. If not i will usually just let the car idle for a 1-2mins before shutting it down.
Alan