Should I let my car idle before switching it off?

My daughter is waiting to collect a used 2017 Kia Sportage from a Kia dealership. Your articles have often recommend drivers using Shell V power fuel. Will my daughter gain the same benefits from super unleaded fuel with this secondhand car with only 15,000 recorded miles? Also, I have read that some turbo engines need to idle after use before being switched off in order to protect the turbo. Does this apply only to high performance turbo engines or will she need to follow any driving procedures with this car? Your advice and comments will be much appreciated.

Asked on 16 July 2020 by David Teasdale

Answered by Andrew Brady
In short: no and no. Most modern engines will be absolutely fine using regular fuel. And there's no reason to let the engine idle before turning it off. Its engine management system will continue to run the cooling system to dissipate heat and prevent damage.
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