Quote:
Originally Posted by nikitopo
These engines are running too hot by the factory. Older engines had lower coolant temps, but they changed it for engine efficiency and fuel consumption. Not many people are using a lower temp thermostat here, but it helps on keeping temperatures down including the oil temps. Maybe it is a good idea for the new engine too.
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If they were designed to run that hot, they’re not running too hot. Most OEM turbo DI cars run 250F nominal oil temp, reaching 300F in short intervals. Manufacturers have been doing this for over 15 years and it’s fine. You just need good oil.