Is it necessary to let a small turbo petrol engine cool down before turning it off?

Is it necessary to cool down a 2019 Ford Focus 1.0 EcoBoost engine before turning it off? If so how long is it necessary to run the engine for?

Asked on 6 June 2019 by Alan Stanley

Answered by Honest John
The 1.0 EcoBoost has a water cooled turbo, but best to let the engine idle for a minute or two after a long ascent, after driving 50 miles or more on the motorway, after towing, or after driving at high revs. Otherwise, in normal driving, or driving in traffic, no need.
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