To Idle or Not Idle

[Quattropro]

As a German car mechanic of 18 years, I can attest to the fuel dilution of the oil that CarbonSteel was talking about. Common problem on direct injection cars. As most people have already stated, I myself wait until the RPMs drop down after about a minute and then take off.

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[Capricorn]

Start it and go.

Many will tell you that with a turbo it's more important to idle for a minute or so when you shut it off to keep fresh oil flowing to the turbo while it spools down. I don't know if it's legit advice or not, but it makes theoretical sense.

Legit advice to idle a little (depending) before shutting down the turbo.
From 2023 Wrangler's Owners Manual: